From: Raghubansh Kumar <kraghuba@php.net>
Date: Tue, 11 Dec 2007 09:04:49 +0000 (+0000)
Subject: New testcases for array_merge_recursive() function
X-Git-Tag: RELEASE_2_0_0a1~1215
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c958bf2b103b86c3fe7724d056419d4c9c8b627a;p=php

New testcases for array_merge_recursive() function
---

diff --git a/ext/standard/tests/array/array_merge_recursive_basic1.phpt b/ext/standard/tests/array/array_merge_recursive_basic1.phpt
new file mode 100644
index 0000000000..a654cf163f
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_basic1.phpt
@@ -0,0 +1,167 @@
+--TEST--
+Test array_merge_recursive() function : basic functionality - array with default keys 
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array 
+ * Source code: ext/standard/array.c
+*/
+
+echo "*** Testing array_merge_recursive() : array with default keys ***\n";
+
+// Initialise the arrays
+$arr1 = array(1, array(1, 2));
+$arr2 = array(3, array("hello", 'world'));
+$arr3 = array(array(6, 7), array("str1", 'str2'));
+
+// Calling array_merge_recursive() with default arguments
+echo "-- With default argument --\n";
+var_dump( array_merge_recursive($arr1) );
+
+// Calling array_merge_recursive() with more arguments
+echo "-- With more arguments --\n";
+var_dump( array_merge_recursive($arr1,$arr2) );
+var_dump( array_merge_recursive($arr1,$arr2,$arr3) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : array with default keys ***
+-- With default argument --
+array(2) {
+  [0]=>
+  int(1)
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+}
+-- With more arguments --
+array(4) {
+  [0]=>
+  int(1)
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  int(3)
+  [3]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+}
+array(6) {
+  [0]=>
+  int(1)
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  int(3)
+  [3]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+  [4]=>
+  array(2) {
+    [0]=>
+    int(6)
+    [1]=>
+    int(7)
+  }
+  [5]=>
+  array(2) {
+    [0]=>
+    string(4) "str1"
+    [1]=>
+    string(4) "str2"
+  }
+}
+Done
+--UEXPECTF--
+*** Testing array_merge_recursive() : array with default keys ***
+-- With default argument --
+array(2) {
+  [0]=>
+  int(1)
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+}
+-- With more arguments --
+array(4) {
+  [0]=>
+  int(1)
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  int(3)
+  [3]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+}
+array(6) {
+  [0]=>
+  int(1)
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  int(3)
+  [3]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+  [4]=>
+  array(2) {
+    [0]=>
+    int(6)
+    [1]=>
+    int(7)
+  }
+  [5]=>
+  array(2) {
+    [0]=>
+    unicode(4) "str1"
+    [1]=>
+    unicode(4) "str2"
+  }
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_basic2.phpt b/ext/standard/tests/array/array_merge_recursive_basic2.phpt
new file mode 100644
index 0000000000..8ac8c5a953
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_basic2.phpt
@@ -0,0 +1,162 @@
+--TEST--
+Test array_merge_recursive() function : basic functionality - associative arrays 
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array 
+ * Source code: ext/standard/array.c
+*/
+
+echo "*** Testing array_merge_recursive() : associative arrays ***\n";
+
+// Initialise the arrays
+$arr1 = array(1 => "one", 2 => array(1, 2));
+$arr2 = array(2 => 'three', "four" => array("hello", 'world'));
+$arr3 = array(1 => array(6, 7), 'four' => array("str1", 'str2'));
+
+// Calling array_merge_recursive() with default arguments
+echo "-- With default argument --\n";
+var_dump( array_merge_recursive($arr1) );
+
+// Calling array_merge_recursive() with more arguments
+echo "-- With more arguments --\n";
+var_dump( array_merge_recursive($arr1,$arr2) );
+var_dump( array_merge_recursive($arr1,$arr2,$arr3) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : associative arrays ***
+-- With default argument --
+array(2) {
+  [0]=>
+  string(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+}
+-- With more arguments --
+array(4) {
+  [0]=>
+  string(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  string(5) "three"
+  ["four"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+}
+array(5) {
+  [0]=>
+  string(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  string(5) "three"
+  ["four"]=>
+  array(4) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+    [2]=>
+    string(4) "str1"
+    [3]=>
+    string(4) "str2"
+  }
+  [3]=>
+  array(2) {
+    [0]=>
+    int(6)
+    [1]=>
+    int(7)
+  }
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : associative arrays ***
+-- With default argument --
+array(2) {
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+}
+-- With more arguments --
+array(4) {
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  unicode(5) "three"
+  [u"four"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+}
+array(5) {
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  unicode(5) "three"
+  [u"four"]=>
+  array(4) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+    [2]=>
+    unicode(4) "str1"
+    [3]=>
+    unicode(4) "str2"
+  }
+  [3]=>
+  array(2) {
+    [0]=>
+    int(6)
+    [1]=>
+    int(7)
+  }
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_error.phpt b/ext/standard/tests/array/array_merge_recursive_error.phpt
new file mode 100644
index 0000000000..9d6797e491
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_error.phpt
@@ -0,0 +1,34 @@
+--TEST--
+Test array_merge_recursive() function : error conditions 
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_merge_recursive() : error conditions ***\n";
+
+// Zero arguments
+echo "\n-- Testing array_merge_recursive() function with Zero arguments --\n";
+var_dump( array_merge_recursive() );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : error conditions ***
+
+-- Testing array_merge_recursive() function with Zero arguments --
+
+Warning: Wrong parameter count for array_merge_recursive() in %s on line %d
+NULL
+Done
+--UEXPECTF--
+*** Testing array_merge_recursive() : error conditions ***
+
+-- Testing array_merge_recursive() function with Zero arguments --
+
+Warning: Wrong parameter count for array_merge_recursive() in %s on line %d
+NULL
+Done
+
diff --git a/ext/standard/tests/array/array_merge_recursive_variation1.phpt b/ext/standard/tests/array/array_merge_recursive_variation1.phpt
new file mode 100644
index 0000000000..42f153abe4
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation1.phpt
@@ -0,0 +1,499 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - unexpected values for $arr1 argument
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Passing non array values to 'arr1' argument of array_merge_recursive() and see 
+ * that the function outputs proper warning messages wherever expected.
+*/
+
+echo "*** Testing array_merge_recursive() : Passing non array values to \$arr1 argument ***\n";
+
+//get an unset variable
+$unset_var = 10;
+unset($unset_var);
+
+class A
+{
+//  public $var = 10;
+  public function __toString() {
+    return "object";
+  }
+}
+
+// heredoc string
+$heredoc = <<<EOT
+hello world
+EOT;
+
+// get a resource variable
+$fp = fopen(__FILE__, "r");
+
+// unexpected values to be passed to $arr1 argument
+$arrays = array (
+
+       // int data
+/*1*/  0,
+       1,
+       12345,
+       -2345,
+
+       // float data
+/*5*/  10.5,
+       -10.5,
+       12.3456789000e10,
+       12.3456789000E-10,
+       .5,
+
+       // null data
+/*10*/ NULL,
+       null,
+
+       // boolean data
+/*12*/ true,
+       false,
+       TRUE,
+       FALSE,
+
+       // empty data
+/*16*/ "",
+       '',
+
+       // string data
+/*18*/ "string",
+       'string',
+       $heredoc,
+
+       // undefined data
+/*21*/ @$undefined_var,
+
+       // unset data
+/*22*/ @$unset_var,
+
+       // resource variable
+/*23*/ $fp,
+
+       // object data
+/*24*/ new A()
+);
+
+// initialise the second argument 
+$arr2 = array(1, array("hello", 'world'));
+
+// loop through each element of $arrays and check the behavior of array_merge_recursive()
+$iterator = 1;
+foreach($arrays as $arr1) {
+  echo "\n-- Iteration $iterator --";
+  
+  // with default argument
+  echo "\n-- With default argument --";
+  var_dump( array_merge_recursive($arr1) );
+ 
+  // with more arguments
+  echo "-- With more arguments --";
+  var_dump( array_merge_recursive($arr1, $arr2) );
+ 
+  $iterator++;
+}
+
+// close the file resource used
+fclose($fp);
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : Passing non array values to $arr1 argument ***
+
+-- Iteration 1 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 2 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 3 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 4 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 5 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 6 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 7 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 8 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 9 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 10 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 11 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 12 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 13 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 14 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 15 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 16 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 17 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 18 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 19 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 20 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 21 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 22 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 23 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 24 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : Passing non array values to $arr1 argument ***
+
+-- Iteration 1 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 2 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 3 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 4 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 5 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 6 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 7 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 8 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 9 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 10 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 11 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 12 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 13 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 14 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 15 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 16 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 17 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 18 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 19 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 20 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 21 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 22 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 23 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+
+-- Iteration 24 --
+-- With default argument --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+-- With more arguments --
+Warning: array_merge_recursive(): Argument #1 is not an array in %s on line %d
+NULL
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation10.phpt b/ext/standard/tests/array/array_merge_recursive_variation10.phpt
new file mode 100644
index 0000000000..af3bc4c0e8
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation10.phpt
@@ -0,0 +1,308 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - two dimensional arrays
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing the functionality of array_merge_recursive() by passing 
+ * two dimensional arrays for $arr1 argument.
+*/
+
+echo "*** Testing array_merge_recursive() : two dimensional array for \$arr1 argument ***\n";
+
+// initialize the 2-d array
+$arr1 = array( 
+  array(1, 2, 3, 1),
+  "array" => array("hello", "world", "str1" => "hello", "str2" => 'world'),
+  array(1 => "one", 2 => "two", "one", 'two'),
+  array(1, 2, 3, 1)
+);
+
+// initialize the second argument 
+$arr2 = array(1, "hello", "array" => array("hello", 'world'));
+
+echo "-- Passing the entire 2-d array --\n";
+echo "-- With default argument --\n";
+var_dump( array_merge_recursive($arr1) );
+echo "-- With more arguments --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+echo "-- Passing the sub-array --\n";
+echo "-- With default argument --\n";
+var_dump( array_merge_recursive($arr1["array"]) );
+echo "-- With more arguments --\n";
+var_dump( array_merge_recursive($arr1["array"], $arr2["array"]) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : two dimensional array for $arr1 argument ***
+-- Passing the entire 2-d array --
+-- With default argument --
+array(4) {
+  [0]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+  ["array"]=>
+  array(4) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+    ["str1"]=>
+    string(5) "hello"
+    ["str2"]=>
+    string(5) "world"
+  }
+  [1]=>
+  array(4) {
+    [1]=>
+    string(3) "one"
+    [2]=>
+    string(3) "two"
+    [3]=>
+    string(3) "one"
+    [4]=>
+    string(3) "two"
+  }
+  [2]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+  ["array"]=>
+  array(6) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+    ["str1"]=>
+    string(5) "hello"
+    ["str2"]=>
+    string(5) "world"
+    [2]=>
+    string(5) "hello"
+    [3]=>
+    string(5) "world"
+  }
+  [1]=>
+  array(4) {
+    [1]=>
+    string(3) "one"
+    [2]=>
+    string(3) "two"
+    [3]=>
+    string(3) "one"
+    [4]=>
+    string(3) "two"
+  }
+  [2]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+  [3]=>
+  int(1)
+  [4]=>
+  string(5) "hello"
+}
+-- Passing the sub-array --
+-- With default argument --
+array(4) {
+  [0]=>
+  string(5) "hello"
+  [1]=>
+  string(5) "world"
+  ["str1"]=>
+  string(5) "hello"
+  ["str2"]=>
+  string(5) "world"
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  string(5) "hello"
+  [1]=>
+  string(5) "world"
+  ["str1"]=>
+  string(5) "hello"
+  ["str2"]=>
+  string(5) "world"
+  [2]=>
+  string(5) "hello"
+  [3]=>
+  string(5) "world"
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : two dimensional array for $arr1 argument ***
+-- Passing the entire 2-d array --
+-- With default argument --
+array(4) {
+  [0]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+  [u"array"]=>
+  array(4) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+    [u"str1"]=>
+    unicode(5) "hello"
+    [u"str2"]=>
+    unicode(5) "world"
+  }
+  [1]=>
+  array(4) {
+    [1]=>
+    unicode(3) "one"
+    [2]=>
+    unicode(3) "two"
+    [3]=>
+    unicode(3) "one"
+    [4]=>
+    unicode(3) "two"
+  }
+  [2]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+  [u"array"]=>
+  array(6) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+    [u"str1"]=>
+    unicode(5) "hello"
+    [u"str2"]=>
+    unicode(5) "world"
+    [2]=>
+    unicode(5) "hello"
+    [3]=>
+    unicode(5) "world"
+  }
+  [1]=>
+  array(4) {
+    [1]=>
+    unicode(3) "one"
+    [2]=>
+    unicode(3) "two"
+    [3]=>
+    unicode(3) "one"
+    [4]=>
+    unicode(3) "two"
+  }
+  [2]=>
+  array(4) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+    [2]=>
+    int(3)
+    [3]=>
+    int(1)
+  }
+  [3]=>
+  int(1)
+  [4]=>
+  unicode(5) "hello"
+}
+-- Passing the sub-array --
+-- With default argument --
+array(4) {
+  [0]=>
+  unicode(5) "hello"
+  [1]=>
+  unicode(5) "world"
+  [u"str1"]=>
+  unicode(5) "hello"
+  [u"str2"]=>
+  unicode(5) "world"
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  unicode(5) "hello"
+  [1]=>
+  unicode(5) "world"
+  [u"str1"]=>
+  unicode(5) "hello"
+  [u"str2"]=>
+  unicode(5) "world"
+  [2]=>
+  unicode(5) "hello"
+  [3]=>
+  unicode(5) "world"
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation2.phpt b/ext/standard/tests/array/array_merge_recursive_variation2.phpt
new file mode 100644
index 0000000000..0e59fe7c2a
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation2.phpt
@@ -0,0 +1,298 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - unexpected values for $arr2 argument
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Passing non array values to 'arr2' argument of array_merge_recursive() and see 
+ * that the function outputs proper warning messages wherever expected.
+*/
+
+echo "*** Testing array_merge_recursive() : Passing non array values to \$arr2 argument ***\n";
+
+// initialise the first argument
+$arr1 = array(1, array("hello", 'world'));
+
+//get an unset variable
+$unset_var = 10;
+unset($unset_var);
+
+class A
+{
+//  public $var = 10;
+  public function __toString() {
+    return "object";
+  }
+}
+
+// heredoc string
+$heredoc = <<<EOT
+hello world
+EOT;
+
+// get a resource variable
+$fp = fopen(__FILE__, "r");
+
+// unexpected values to be passed to $arr2 argument
+$arrays = array (
+
+       // int data
+/*1*/  0,
+       1,
+       12345,
+       -2345,
+
+       // float data
+/*5*/  10.5,
+       -10.5,
+       12.3456789000e10,
+       12.3456789000E-10,
+       .5,
+
+       // null data
+/*10*/ NULL,
+       null,
+
+       // boolean data
+/*12*/ true,
+       false,
+       TRUE,
+       FALSE,
+
+       // empty data
+/*16*/ "",
+       '',
+
+       // string data
+/*18*/ "string",
+       'string',
+       $heredoc,
+
+       // undefined data
+/*21*/ @$undefined_var,
+
+       // unset data
+/*22*/ @$unset_var,
+
+       // resource variable
+/*23*/ $fp,
+
+       // object data
+/*24*/ new A()
+);
+
+// loop through each element of $arrays and check the behavior of array_merge_recursive()
+$iterator = 1;
+foreach($arrays as $arr2) {
+  echo "\n-- Iteration $iterator --";
+  var_dump( array_merge_recursive($arr1, $arr2) );
+  $iterator++;
+}
+
+// close the file resource used
+fclose($fp);
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : Passing non array values to $arr2 argument ***
+
+-- Iteration 1 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 2 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 3 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 4 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 5 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 6 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 7 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 8 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 9 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 10 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 11 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 12 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 13 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 14 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 15 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 16 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 17 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 18 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 19 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 20 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 21 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 22 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 23 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 24 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+Done
+--UEXPECTF--
+*** Testing array_merge_recursive() : Passing non array values to $arr2 argument ***
+
+-- Iteration 1 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 2 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 3 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 4 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 5 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 6 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 7 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 8 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 9 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 10 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 11 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 12 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 13 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 14 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 15 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 16 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 17 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 18 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 19 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 20 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 21 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 22 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 23 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+
+-- Iteration 24 --
+Warning: array_merge_recursive(): Argument #2 is not an array in %s on line %d
+NULL
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation3.phpt b/ext/standard/tests/array/array_merge_recursive_variation3.phpt
new file mode 100644
index 0000000000..901762dc61
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation3.phpt
@@ -0,0 +1,1434 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - different arrays for 'arr1' argument
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+* Passing different arrays to $arr1 argument and testing whether
+* array_merge_recursive() behaves in an expected way.
+*/
+
+echo "*** Testing array_merge_recursive() : Passing different arrays to \$arr1 argument ***\n";
+
+/* Different heredoc strings */
+
+// heredoc with blank line
+$blank_line = <<<EOT
+
+
+EOT;
+
+// heredoc with multiline string
+$multiline_string = <<<EOT
+hello world
+The quick brown fox jumped over;
+the lazy dog
+This is a double quoted string
+EOT;
+
+// heredoc with diferent whitespaces
+$diff_whitespaces = <<<EOT
+hello\r world\t
+1111\t\t != 2222\v\v
+heredoc\ndouble quoted string. with\vdifferent\fwhite\vspaces
+EOT;
+
+// heredoc with quoted strings and numeric values
+$numeric_string = <<<EOT
+11 < 12. 123 >22
+'single quoted string'
+"double quoted string"
+2222 != 1111.\t 0000 = 0000\n
+EOT;
+
+// arrays passed to $arr1 argument
+$arrays = array (
+/*1*/  array(1, 2,), // with default keys and numeric values
+       array(1.1, 2.2), // with default keys & float values
+       array(false, true), // with default keys and boolean values
+       array(), // empty array
+/*5*/  array(NULL), // with NULL
+       array("a\v\f", "aaaa\r", "b", "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"),  // with double quoted strings
+       array('a\v\f', 'aaaa\r', 'b', '\[\]\!\@\#\$\%\^\&\*\(\)\{\}'),  // with single quoted strings
+       array("h1" => $blank_line, "h2" => $multiline_string, "h3" => $diff_whitespaces),  // with heredocs
+
+       // associative arrays
+/*9*/  array(1 => "one", 2 => "two"),  // explicit numeric keys, string values
+       array("one" => 1, "two" => 2, "1" => 1 ),  // string keys & numeric values
+       array( 1 => 10, 2 => 20, 4 => 40),  // explicit numeric keys and numeric values
+       array( "one" => "ten", "two" => "twenty"),  // string key/value
+       array("one" => 1, 2 => "two", 4 => "four"),  //mixed
+
+       // associative array, containing null/empty/boolean values as key/value
+/*14*/ array(NULL => "NULL", null => "null", "NULL" => NULL, "null" => null),
+       array(true => "true", false => "false", "false" => false, "true" => true),
+       array("" => "emptyd", '' => 'emptys', "emptyd" => "", 'emptys' => ''),
+       array(1 => '', 2 => "", 3 => NULL, 4 => null, 5 => false, 6 => true),
+       array('' => 1, "" => 2, NULL => 3, null => 4, false => 5, true => 6),
+
+       // array containing embedded arrays
+/*15*/ array("str1", "array" => array("hello", 'world'), array(1, 2))
+);
+
+// initialise the second argument
+$arr2 = array( 1 => "one", 2, "string" => "hello", "array" => array("a", "b", "c"));
+
+// loop through each sub array of $arrays and check the behavior of array_merge_recursive()
+$iterator = 1;
+foreach($arrays as $arr1) {
+  echo "-- Iteration $iterator --\n";
+
+  // with default argument
+  echo "-- With default argument --\n";
+  var_dump( array_merge_recursive($arr1) );
+
+  // with more arguments
+  echo "-- With more arguments --\n";
+  var_dump( array_merge_recursive($arr1, $arr2) );
+
+  $iterator++;
+}
+  
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : Passing different arrays to $arr1 argument ***
+-- Iteration 1 --
+-- With default argument --
+array(2) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 2 --
+-- With default argument --
+array(2) {
+  [0]=>
+  float(1.1)
+  [1]=>
+  float(2.2)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  float(1.1)
+  [1]=>
+  float(2.2)
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 3 --
+-- With default argument --
+array(2) {
+  [0]=>
+  bool(false)
+  [1]=>
+  bool(true)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  bool(false)
+  [1]=>
+  bool(true)
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 4 --
+-- With default argument --
+array(0) {
+}
+-- With more arguments --
+array(4) {
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 5 --
+-- With default argument --
+array(1) {
+  [0]=>
+  NULL
+}
+-- With more arguments --
+array(5) {
+  [0]=>
+  NULL
+  [1]=>
+  string(3) "one"
+  [2]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 6 --
+-- With default argument --
+array(4) {
+  [0]=>
+  string(3) "a"
+  [1]=>
+  string(5) "aaaa
+"
+  [2]=>
+  string(1) "b"
+  [3]=>
+  string(27) "\[\]\!\@\#$\%\^\&\*\(\)\{\}"
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  string(3) "a"
+  [1]=>
+  string(5) "aaaa
+"
+  [2]=>
+  string(1) "b"
+  [3]=>
+  string(27) "\[\]\!\@\#$\%\^\&\*\(\)\{\}"
+  [4]=>
+  string(3) "one"
+  [5]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 7 --
+-- With default argument --
+array(4) {
+  [0]=>
+  string(5) "a\v\f"
+  [1]=>
+  string(6) "aaaa\r"
+  [2]=>
+  string(1) "b"
+  [3]=>
+  string(28) "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  string(5) "a\v\f"
+  [1]=>
+  string(6) "aaaa\r"
+  [2]=>
+  string(1) "b"
+  [3]=>
+  string(28) "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"
+  [4]=>
+  string(3) "one"
+  [5]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 8 --
+-- With default argument --
+array(3) {
+  ["h1"]=>
+  string(1) "
+"
+  ["h2"]=>
+  string(88) "hello world
+The quick brown fox jumped over;
+the lazy dog
+This is a double quoted string"
+  ["h3"]=>
+  string(88) "hello
+ world	
+1111		 != 2222
+heredoc
+double quoted string. withdifferentwhitespaces"
+}
+-- With more arguments --
+array(7) {
+  ["h1"]=>
+  string(1) "
+"
+  ["h2"]=>
+  string(88) "hello world
+The quick brown fox jumped over;
+the lazy dog
+This is a double quoted string"
+  ["h3"]=>
+  string(88) "hello
+ world	
+1111		 != 2222
+heredoc
+double quoted string. withdifferentwhitespaces"
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 9 --
+-- With default argument --
+array(2) {
+  [0]=>
+  string(3) "one"
+  [1]=>
+  string(3) "two"
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  string(3) "one"
+  [1]=>
+  string(3) "two"
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 10 --
+-- With default argument --
+array(3) {
+  ["one"]=>
+  int(1)
+  ["two"]=>
+  int(2)
+  [0]=>
+  int(1)
+}
+-- With more arguments --
+array(7) {
+  ["one"]=>
+  int(1)
+  ["two"]=>
+  int(2)
+  [0]=>
+  int(1)
+  [1]=>
+  string(3) "one"
+  [2]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 11 --
+-- With default argument --
+array(3) {
+  [0]=>
+  int(10)
+  [1]=>
+  int(20)
+  [2]=>
+  int(40)
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  int(10)
+  [1]=>
+  int(20)
+  [2]=>
+  int(40)
+  [3]=>
+  string(3) "one"
+  [4]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 12 --
+-- With default argument --
+array(2) {
+  ["one"]=>
+  string(3) "ten"
+  ["two"]=>
+  string(6) "twenty"
+}
+-- With more arguments --
+array(6) {
+  ["one"]=>
+  string(3) "ten"
+  ["two"]=>
+  string(6) "twenty"
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 13 --
+-- With default argument --
+array(3) {
+  ["one"]=>
+  int(1)
+  [0]=>
+  string(3) "two"
+  [1]=>
+  string(4) "four"
+}
+-- With more arguments --
+array(7) {
+  ["one"]=>
+  int(1)
+  [0]=>
+  string(3) "two"
+  [1]=>
+  string(4) "four"
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 14 --
+-- With default argument --
+array(3) {
+  [""]=>
+  string(4) "null"
+  ["NULL"]=>
+  NULL
+  ["null"]=>
+  NULL
+}
+-- With more arguments --
+array(7) {
+  [""]=>
+  string(4) "null"
+  ["NULL"]=>
+  NULL
+  ["null"]=>
+  NULL
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 15 --
+-- With default argument --
+array(4) {
+  [0]=>
+  string(4) "true"
+  [1]=>
+  string(5) "false"
+  ["false"]=>
+  bool(false)
+  ["true"]=>
+  bool(true)
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  string(4) "true"
+  [1]=>
+  string(5) "false"
+  ["false"]=>
+  bool(false)
+  ["true"]=>
+  bool(true)
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 16 --
+-- With default argument --
+array(3) {
+  [""]=>
+  string(6) "emptys"
+  ["emptyd"]=>
+  string(0) ""
+  ["emptys"]=>
+  string(0) ""
+}
+-- With more arguments --
+array(7) {
+  [""]=>
+  string(6) "emptys"
+  ["emptyd"]=>
+  string(0) ""
+  ["emptys"]=>
+  string(0) ""
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 17 --
+-- With default argument --
+array(6) {
+  [0]=>
+  string(0) ""
+  [1]=>
+  string(0) ""
+  [2]=>
+  NULL
+  [3]=>
+  NULL
+  [4]=>
+  bool(false)
+  [5]=>
+  bool(true)
+}
+-- With more arguments --
+array(10) {
+  [0]=>
+  string(0) ""
+  [1]=>
+  string(0) ""
+  [2]=>
+  NULL
+  [3]=>
+  NULL
+  [4]=>
+  bool(false)
+  [5]=>
+  bool(true)
+  [6]=>
+  string(3) "one"
+  [7]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 18 --
+-- With default argument --
+array(3) {
+  [""]=>
+  int(4)
+  [0]=>
+  int(5)
+  [1]=>
+  int(6)
+}
+-- With more arguments --
+array(7) {
+  [""]=>
+  int(4)
+  [0]=>
+  int(5)
+  [1]=>
+  int(6)
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 19 --
+-- With default argument --
+array(3) {
+  [0]=>
+  string(4) "str1"
+  ["array"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  string(4) "str1"
+  ["array"]=>
+  array(5) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+    [2]=>
+    string(1) "a"
+    [3]=>
+    string(1) "b"
+    [4]=>
+    string(1) "c"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : Passing different arrays to $arr1 argument ***
+-- Iteration 1 --
+-- With default argument --
+array(2) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 2 --
+-- With default argument --
+array(2) {
+  [0]=>
+  float(1.1)
+  [1]=>
+  float(2.2)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  float(1.1)
+  [1]=>
+  float(2.2)
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 3 --
+-- With default argument --
+array(2) {
+  [0]=>
+  bool(false)
+  [1]=>
+  bool(true)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  bool(false)
+  [1]=>
+  bool(true)
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 4 --
+-- With default argument --
+array(0) {
+}
+-- With more arguments --
+array(4) {
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 5 --
+-- With default argument --
+array(1) {
+  [0]=>
+  NULL
+}
+-- With more arguments --
+array(5) {
+  [0]=>
+  NULL
+  [1]=>
+  unicode(3) "one"
+  [2]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 6 --
+-- With default argument --
+array(4) {
+  [0]=>
+  unicode(3) "a"
+  [1]=>
+  unicode(5) "aaaa
+"
+  [2]=>
+  unicode(1) "b"
+  [3]=>
+  unicode(27) "\[\]\!\@\#$\%\^\&\*\(\)\{\}"
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  unicode(3) "a"
+  [1]=>
+  unicode(5) "aaaa
+"
+  [2]=>
+  unicode(1) "b"
+  [3]=>
+  unicode(27) "\[\]\!\@\#$\%\^\&\*\(\)\{\}"
+  [4]=>
+  unicode(3) "one"
+  [5]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 7 --
+-- With default argument --
+array(4) {
+  [0]=>
+  unicode(5) "a\v\f"
+  [1]=>
+  unicode(6) "aaaa\r"
+  [2]=>
+  unicode(1) "b"
+  [3]=>
+  unicode(28) "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  unicode(5) "a\v\f"
+  [1]=>
+  unicode(6) "aaaa\r"
+  [2]=>
+  unicode(1) "b"
+  [3]=>
+  unicode(28) "\[\]\!\@\#\$\%\^\&\*\(\)\{\}"
+  [4]=>
+  unicode(3) "one"
+  [5]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 8 --
+-- With default argument --
+array(3) {
+  [u"h1"]=>
+  unicode(1) "
+"
+  [u"h2"]=>
+  unicode(88) "hello world
+The quick brown fox jumped over;
+the lazy dog
+This is a double quoted string"
+  [u"h3"]=>
+  unicode(88) "hello
+ world	
+1111		 != 2222
+heredoc
+double quoted string. withdifferentwhitespaces"
+}
+-- With more arguments --
+array(7) {
+  [u"h1"]=>
+  unicode(1) "
+"
+  [u"h2"]=>
+  unicode(88) "hello world
+The quick brown fox jumped over;
+the lazy dog
+This is a double quoted string"
+  [u"h3"]=>
+  unicode(88) "hello
+ world	
+1111		 != 2222
+heredoc
+double quoted string. withdifferentwhitespaces"
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 9 --
+-- With default argument --
+array(2) {
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  unicode(3) "two"
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  unicode(3) "two"
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 10 --
+-- With default argument --
+array(3) {
+  [u"one"]=>
+  int(1)
+  [u"two"]=>
+  int(2)
+  [0]=>
+  int(1)
+}
+-- With more arguments --
+array(7) {
+  [u"one"]=>
+  int(1)
+  [u"two"]=>
+  int(2)
+  [0]=>
+  int(1)
+  [1]=>
+  unicode(3) "one"
+  [2]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 11 --
+-- With default argument --
+array(3) {
+  [0]=>
+  int(10)
+  [1]=>
+  int(20)
+  [2]=>
+  int(40)
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  int(10)
+  [1]=>
+  int(20)
+  [2]=>
+  int(40)
+  [3]=>
+  unicode(3) "one"
+  [4]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 12 --
+-- With default argument --
+array(2) {
+  [u"one"]=>
+  unicode(3) "ten"
+  [u"two"]=>
+  unicode(6) "twenty"
+}
+-- With more arguments --
+array(6) {
+  [u"one"]=>
+  unicode(3) "ten"
+  [u"two"]=>
+  unicode(6) "twenty"
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 13 --
+-- With default argument --
+array(3) {
+  [u"one"]=>
+  int(1)
+  [0]=>
+  unicode(3) "two"
+  [1]=>
+  unicode(4) "four"
+}
+-- With more arguments --
+array(7) {
+  [u"one"]=>
+  int(1)
+  [0]=>
+  unicode(3) "two"
+  [1]=>
+  unicode(4) "four"
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 14 --
+-- With default argument --
+array(3) {
+  [u""]=>
+  unicode(4) "null"
+  [u"NULL"]=>
+  NULL
+  [u"null"]=>
+  NULL
+}
+-- With more arguments --
+array(7) {
+  [u""]=>
+  unicode(4) "null"
+  [u"NULL"]=>
+  NULL
+  [u"null"]=>
+  NULL
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 15 --
+-- With default argument --
+array(4) {
+  [0]=>
+  unicode(4) "true"
+  [1]=>
+  unicode(5) "false"
+  [u"false"]=>
+  bool(false)
+  [u"true"]=>
+  bool(true)
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  unicode(4) "true"
+  [1]=>
+  unicode(5) "false"
+  [u"false"]=>
+  bool(false)
+  [u"true"]=>
+  bool(true)
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 16 --
+-- With default argument --
+array(3) {
+  [u""]=>
+  unicode(6) "emptys"
+  [u"emptyd"]=>
+  unicode(0) ""
+  [u"emptys"]=>
+  unicode(0) ""
+}
+-- With more arguments --
+array(7) {
+  [u""]=>
+  unicode(6) "emptys"
+  [u"emptyd"]=>
+  unicode(0) ""
+  [u"emptys"]=>
+  unicode(0) ""
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 17 --
+-- With default argument --
+array(6) {
+  [0]=>
+  unicode(0) ""
+  [1]=>
+  unicode(0) ""
+  [2]=>
+  NULL
+  [3]=>
+  NULL
+  [4]=>
+  bool(false)
+  [5]=>
+  bool(true)
+}
+-- With more arguments --
+array(10) {
+  [0]=>
+  unicode(0) ""
+  [1]=>
+  unicode(0) ""
+  [2]=>
+  NULL
+  [3]=>
+  NULL
+  [4]=>
+  bool(false)
+  [5]=>
+  bool(true)
+  [6]=>
+  unicode(3) "one"
+  [7]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 18 --
+-- With default argument --
+array(3) {
+  [u""]=>
+  int(4)
+  [0]=>
+  int(5)
+  [1]=>
+  int(6)
+}
+-- With more arguments --
+array(7) {
+  [u""]=>
+  int(4)
+  [0]=>
+  int(5)
+  [1]=>
+  int(6)
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 19 --
+-- With default argument --
+array(3) {
+  [0]=>
+  unicode(4) "str1"
+  [u"array"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  unicode(4) "str1"
+  [u"array"]=>
+  array(5) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+    [2]=>
+    unicode(1) "a"
+    [3]=>
+    unicode(1) "b"
+    [4]=>
+    unicode(1) "c"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation4.phpt b/ext/standard/tests/array/array_merge_recursive_variation4.phpt
new file mode 100644
index 0000000000..b037f28119
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation4.phpt
@@ -0,0 +1,770 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - associative array with different keys
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing the functionality of array_merge_recursive() by passing different
+ * associative arrays having different keys to $arr1 argument.
+*/
+
+echo "*** Testing array_merge_recursive() : assoc. array with diff. keys to \$arr1 argument ***\n";
+
+// get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+// get a resource variable
+$fp = fopen(__FILE__, "r");
+
+// get a class
+class classA
+{
+  public function __toString(){
+    return "Class A object";
+  }
+}
+
+// get a heredoc string
+$heredoc = <<<EOT
+Hello world
+EOT;
+
+// different associative arrays to be passed to $arr1 argument
+$arrays = array (
+/*1*/  // arrays with integer keys
+       array(0 => "0", 1 => array(1 => "one")),
+       array(1 => "1", 2 => array(1 => "one", 2 => "two", 3 => 1, 4 => "4")),
+
+       // arrays with float keys
+/*3*/  array(2.3333 => "float", 44.44 => array(1.1 => "float")),
+       array(1.2 => "f1", 3.33 => "f2", 4.89999922839999 => array(1.1 => "f1"), 3333333.333333 => "f4"),
+
+       // arrays with string keys
+/*5*/  array('\tHello' => array("hello", 'world'), '\v\fworld' => 2.2, 'pen\n' => 111),
+       array("\tHello" => array("hello", 'world'), "\v\fworld" => 2.2, "pen\n" => 111),
+       array("hello", $heredoc => array("heredoc", 'string'), "string"),
+
+       // array with object, unset variable and resource variable
+/*8*/ array(new classA() => 11, @$unset_var => array("unset"), $fp => 'resource', 11, "hello")
+);
+
+// initialise the second array 
+$arr2 = array( 1 => "one", 2, "string" => "hello", "array" => array("a", "b", "c"));
+
+// loop through each sub array of $arrays and check the behavior of array_merge_recursive()
+$iterator = 1;
+foreach($arrays as $arr1) {
+  echo "-- Iteration $iterator --\n";
+
+  // with default argument
+  echo "-- With default argument --\n";
+  var_dump( array_merge_recursive($arr1) );
+
+  // with more arguments
+  echo "-- With more arguments --\n";
+  var_dump( array_merge_recursive($arr1, $arr2) );
+
+  $iterator++;
+}
+
+// close the file resource used
+fclose($fp);
+  
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : assoc. array with diff. keys to $arr1 argument ***
+
+Warning: Illegal offset type in %s on line %d
+
+Warning: Illegal offset type in %s on line %d
+-- Iteration 1 --
+-- With default argument --
+array(2) {
+  [0]=>
+  string(1) "0"
+  [1]=>
+  array(1) {
+    [1]=>
+    string(3) "one"
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  string(1) "0"
+  [1]=>
+  array(1) {
+    [1]=>
+    string(3) "one"
+  }
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 2 --
+-- With default argument --
+array(2) {
+  [0]=>
+  string(1) "1"
+  [1]=>
+  array(4) {
+    [1]=>
+    string(3) "one"
+    [2]=>
+    string(3) "two"
+    [3]=>
+    int(1)
+    [4]=>
+    string(1) "4"
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  string(1) "1"
+  [1]=>
+  array(4) {
+    [1]=>
+    string(3) "one"
+    [2]=>
+    string(3) "two"
+    [3]=>
+    int(1)
+    [4]=>
+    string(1) "4"
+  }
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 3 --
+-- With default argument --
+array(2) {
+  [0]=>
+  string(5) "float"
+  [1]=>
+  array(1) {
+    [1]=>
+    string(5) "float"
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  string(5) "float"
+  [1]=>
+  array(1) {
+    [1]=>
+    string(5) "float"
+  }
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 4 --
+-- With default argument --
+array(4) {
+  [0]=>
+  string(2) "f1"
+  [1]=>
+  string(2) "f2"
+  [2]=>
+  array(1) {
+    [1]=>
+    string(2) "f1"
+  }
+  [3]=>
+  string(2) "f4"
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  string(2) "f1"
+  [1]=>
+  string(2) "f2"
+  [2]=>
+  array(1) {
+    [1]=>
+    string(2) "f1"
+  }
+  [3]=>
+  string(2) "f4"
+  [4]=>
+  string(3) "one"
+  [5]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 5 --
+-- With default argument --
+array(3) {
+  ["\tHello"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+  ["\v\fworld"]=>
+  float(2.2)
+  ["pen\n"]=>
+  int(111)
+}
+-- With more arguments --
+array(7) {
+  ["\tHello"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+  ["\v\fworld"]=>
+  float(2.2)
+  ["pen\n"]=>
+  int(111)
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 6 --
+-- With default argument --
+array(3) {
+  ["	Hello"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+  ["world"]=>
+  float(2.2)
+  ["pen
+"]=>
+  int(111)
+}
+-- With more arguments --
+array(7) {
+  ["	Hello"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "world"
+  }
+  ["world"]=>
+  float(2.2)
+  ["pen
+"]=>
+  int(111)
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 7 --
+-- With default argument --
+array(3) {
+  [0]=>
+  string(5) "hello"
+  ["Hello world"]=>
+  array(2) {
+    [0]=>
+    string(7) "heredoc"
+    [1]=>
+    string(6) "string"
+  }
+  [1]=>
+  string(6) "string"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  string(5) "hello"
+  ["Hello world"]=>
+  array(2) {
+    [0]=>
+    string(7) "heredoc"
+    [1]=>
+    string(6) "string"
+  }
+  [1]=>
+  string(6) "string"
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 8 --
+-- With default argument --
+array(3) {
+  [""]=>
+  array(1) {
+    [0]=>
+    string(5) "unset"
+  }
+  [0]=>
+  int(11)
+  [1]=>
+  string(5) "hello"
+}
+-- With more arguments --
+array(7) {
+  [""]=>
+  array(1) {
+    [0]=>
+    string(5) "unset"
+  }
+  [0]=>
+  int(11)
+  [1]=>
+  string(5) "hello"
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : assoc. array with diff. keys to $arr1 argument ***
+
+Warning: Illegal offset type in %s on line %d
+
+Warning: Illegal offset type in %s on line %d
+-- Iteration 1 --
+-- With default argument --
+array(2) {
+  [0]=>
+  unicode(1) "0"
+  [1]=>
+  array(1) {
+    [1]=>
+    unicode(3) "one"
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  unicode(1) "0"
+  [1]=>
+  array(1) {
+    [1]=>
+    unicode(3) "one"
+  }
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 2 --
+-- With default argument --
+array(2) {
+  [0]=>
+  unicode(1) "1"
+  [1]=>
+  array(4) {
+    [1]=>
+    unicode(3) "one"
+    [2]=>
+    unicode(3) "two"
+    [3]=>
+    int(1)
+    [4]=>
+    unicode(1) "4"
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  unicode(1) "1"
+  [1]=>
+  array(4) {
+    [1]=>
+    unicode(3) "one"
+    [2]=>
+    unicode(3) "two"
+    [3]=>
+    int(1)
+    [4]=>
+    unicode(1) "4"
+  }
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 3 --
+-- With default argument --
+array(2) {
+  [0]=>
+  unicode(5) "float"
+  [1]=>
+  array(1) {
+    [1]=>
+    unicode(5) "float"
+  }
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  unicode(5) "float"
+  [1]=>
+  array(1) {
+    [1]=>
+    unicode(5) "float"
+  }
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 4 --
+-- With default argument --
+array(4) {
+  [0]=>
+  unicode(2) "f1"
+  [1]=>
+  unicode(2) "f2"
+  [2]=>
+  array(1) {
+    [1]=>
+    unicode(2) "f1"
+  }
+  [3]=>
+  unicode(2) "f4"
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  unicode(2) "f1"
+  [1]=>
+  unicode(2) "f2"
+  [2]=>
+  array(1) {
+    [1]=>
+    unicode(2) "f1"
+  }
+  [3]=>
+  unicode(2) "f4"
+  [4]=>
+  unicode(3) "one"
+  [5]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 5 --
+-- With default argument --
+array(3) {
+  [u"\tHello"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+  [u"\v\fworld"]=>
+  float(2.2)
+  [u"pen\n"]=>
+  int(111)
+}
+-- With more arguments --
+array(7) {
+  [u"\tHello"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+  [u"\v\fworld"]=>
+  float(2.2)
+  [u"pen\n"]=>
+  int(111)
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 6 --
+-- With default argument --
+array(3) {
+  [u"	Hello"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+  [u"world"]=>
+  float(2.2)
+  [u"pen
+"]=>
+  int(111)
+}
+-- With more arguments --
+array(7) {
+  [u"	Hello"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "world"
+  }
+  [u"world"]=>
+  float(2.2)
+  [u"pen
+"]=>
+  int(111)
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 7 --
+-- With default argument --
+array(3) {
+  [0]=>
+  unicode(5) "hello"
+  [u"Hello world"]=>
+  array(2) {
+    [0]=>
+    unicode(7) "heredoc"
+    [1]=>
+    unicode(6) "string"
+  }
+  [1]=>
+  unicode(6) "string"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  unicode(5) "hello"
+  [u"Hello world"]=>
+  array(2) {
+    [0]=>
+    unicode(7) "heredoc"
+    [1]=>
+    unicode(6) "string"
+  }
+  [1]=>
+  unicode(6) "string"
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 8 --
+-- With default argument --
+array(3) {
+  [u""]=>
+  array(1) {
+    [0]=>
+    unicode(5) "unset"
+  }
+  [0]=>
+  int(11)
+  [1]=>
+  unicode(5) "hello"
+}
+-- With more arguments --
+array(7) {
+  [u""]=>
+  array(1) {
+    [0]=>
+    unicode(5) "unset"
+  }
+  [0]=>
+  int(11)
+  [1]=>
+  unicode(5) "hello"
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation5.phpt b/ext/standard/tests/array/array_merge_recursive_variation5.phpt
new file mode 100644
index 0000000000..a63f9a6e25
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation5.phpt
@@ -0,0 +1,726 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - associative array with different values
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing the functionality of array_merge_recursive() by passing different
+ * associative arrays having different values to $arr1 argument.
+*/
+
+echo "*** Testing array_merge_recursive() : assoc. array with diff. values to \$arr1 argument ***\n";
+
+// get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+// get a resource variable
+$fp = fopen(__FILE__, "r");
+
+// get a class
+class classA
+{
+  public function __toString(){
+    return "Class A object";
+  }
+}
+
+// get a heredoc string
+$heredoc = <<<EOT
+Hello world
+EOT;
+
+// different associative arrays to be passed to $arr1 argument
+$arrays = array (
+// arrays with integer values
+/*1*/  array('0' => 0, '1' => 0),
+       array("one" => 1, 'two' => 2, "three" => 1, 4 => 1),
+
+       // arrays with float values
+/*3*/  array("f1" => 2.3333, "f2" => 2.3333, "f3" => array(1.1, 2.22)),
+       array("f1" => 1.2, 'f2' => 3.33, 3 => 4.89999922839999, 'f4' => array(1.2, 'f4' => 1.2)),
+
+       // arrays with string values
+/*5*/  array(111 => "\tHello", "array" => "col\tor", 2 => "\v\fworld", 3.3 =>  "\tHello"),
+       array(111 => '\tHello', 'array' => 'col\tor', 2 => '\v\fworld', 3.3 =>  '\tHello'),
+       array(1 => "hello", "string" => $heredoc, $heredoc),
+
+       // array with object, unset variable and resource variable
+/*8*/  array(11 => new classA(), "string" => @$unset_var, "resource" => $fp, new classA(), $fp),
+);
+
+// initialise the second array 
+$arr2 = array( 1 => "one", 2, "string" => "hello", "array" => array("a", "b", "c"));
+
+// loop through each sub array of $arrays and check the behavior of array_merge_recursive()
+$iterator = 1;
+foreach($arrays as $arr1) {
+  echo "-- Iteration $iterator --\n";
+
+  // with default argument
+  echo "-- With default argument --\n";
+  var_dump( array_merge_recursive($arr1) );
+
+  // with more arguments
+  echo "-- With more arguments --\n";
+  var_dump( array_merge_recursive($arr1, $arr2) );
+
+  $iterator++;
+}
+
+// close the file resource used
+fclose($fp);
+  
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : assoc. array with diff. values to $arr1 argument ***
+-- Iteration 1 --
+-- With default argument --
+array(2) {
+  [0]=>
+  int(0)
+  [1]=>
+  int(0)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  int(0)
+  [1]=>
+  int(0)
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 2 --
+-- With default argument --
+array(4) {
+  ["one"]=>
+  int(1)
+  ["two"]=>
+  int(2)
+  ["three"]=>
+  int(1)
+  [0]=>
+  int(1)
+}
+-- With more arguments --
+array(8) {
+  ["one"]=>
+  int(1)
+  ["two"]=>
+  int(2)
+  ["three"]=>
+  int(1)
+  [0]=>
+  int(1)
+  [1]=>
+  string(3) "one"
+  [2]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 3 --
+-- With default argument --
+array(3) {
+  ["f1"]=>
+  float(2.3333)
+  ["f2"]=>
+  float(2.3333)
+  ["f3"]=>
+  array(2) {
+    [0]=>
+    float(1.1)
+    [1]=>
+    float(2.22)
+  }
+}
+-- With more arguments --
+array(7) {
+  ["f1"]=>
+  float(2.3333)
+  ["f2"]=>
+  float(2.3333)
+  ["f3"]=>
+  array(2) {
+    [0]=>
+    float(1.1)
+    [1]=>
+    float(2.22)
+  }
+  [0]=>
+  string(3) "one"
+  [1]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 4 --
+-- With default argument --
+array(4) {
+  ["f1"]=>
+  float(1.2)
+  ["f2"]=>
+  float(3.33)
+  [0]=>
+  float(4.8999992284)
+  ["f4"]=>
+  array(2) {
+    [0]=>
+    float(1.2)
+    ["f4"]=>
+    float(1.2)
+  }
+}
+-- With more arguments --
+array(8) {
+  ["f1"]=>
+  float(1.2)
+  ["f2"]=>
+  float(3.33)
+  [0]=>
+  float(4.8999992284)
+  ["f4"]=>
+  array(2) {
+    [0]=>
+    float(1.2)
+    ["f4"]=>
+    float(1.2)
+  }
+  [1]=>
+  string(3) "one"
+  [2]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 5 --
+-- With default argument --
+array(4) {
+  [0]=>
+  string(6) "	Hello"
+  ["array"]=>
+  string(6) "col	or"
+  [1]=>
+  string(7) "world"
+  [2]=>
+  string(6) "	Hello"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  string(6) "	Hello"
+  ["array"]=>
+  array(4) {
+    [0]=>
+    string(6) "col	or"
+    [1]=>
+    string(1) "a"
+    [2]=>
+    string(1) "b"
+    [3]=>
+    string(1) "c"
+  }
+  [1]=>
+  string(7) "world"
+  [2]=>
+  string(6) "	Hello"
+  [3]=>
+  string(3) "one"
+  [4]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+}
+-- Iteration 6 --
+-- With default argument --
+array(4) {
+  [0]=>
+  string(7) "\tHello"
+  ["array"]=>
+  string(7) "col\tor"
+  [1]=>
+  string(9) "\v\fworld"
+  [2]=>
+  string(7) "\tHello"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  string(7) "\tHello"
+  ["array"]=>
+  array(4) {
+    [0]=>
+    string(7) "col\tor"
+    [1]=>
+    string(1) "a"
+    [2]=>
+    string(1) "b"
+    [3]=>
+    string(1) "c"
+  }
+  [1]=>
+  string(9) "\v\fworld"
+  [2]=>
+  string(7) "\tHello"
+  [3]=>
+  string(3) "one"
+  [4]=>
+  int(2)
+  ["string"]=>
+  string(5) "hello"
+}
+-- Iteration 7 --
+-- With default argument --
+array(3) {
+  [0]=>
+  string(5) "hello"
+  ["string"]=>
+  string(11) "Hello world"
+  [1]=>
+  string(11) "Hello world"
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  string(5) "hello"
+  ["string"]=>
+  array(2) {
+    [0]=>
+    string(11) "Hello world"
+    [1]=>
+    string(5) "hello"
+  }
+  [1]=>
+  string(11) "Hello world"
+  [2]=>
+  string(3) "one"
+  [3]=>
+  int(2)
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+-- Iteration 8 --
+-- With default argument --
+array(5) {
+  [0]=>
+  object(classA)#%d (0) {
+  }
+  ["string"]=>
+  NULL
+  ["resource"]=>
+  resource(%d) of type (stream)
+  [1]=>
+  object(classA)#%d (0) {
+  }
+  [2]=>
+  resource(%d) of type (stream)
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  object(classA)#%d (0) {
+  }
+  ["string"]=>
+  array(1) {
+    [0]=>
+    string(5) "hello"
+  }
+  ["resource"]=>
+  resource(%d) of type (stream)
+  [1]=>
+  object(classA)#%d (0) {
+  }
+  [2]=>
+  resource(%d) of type (stream)
+  [3]=>
+  string(3) "one"
+  [4]=>
+  int(2)
+  ["array"]=>
+  array(3) {
+    [0]=>
+    string(1) "a"
+    [1]=>
+    string(1) "b"
+    [2]=>
+    string(1) "c"
+  }
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : assoc. array with diff. values to $arr1 argument ***
+-- Iteration 1 --
+-- With default argument --
+array(2) {
+  [0]=>
+  int(0)
+  [1]=>
+  int(0)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  int(0)
+  [1]=>
+  int(0)
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 2 --
+-- With default argument --
+array(4) {
+  [u"one"]=>
+  int(1)
+  [u"two"]=>
+  int(2)
+  [u"three"]=>
+  int(1)
+  [0]=>
+  int(1)
+}
+-- With more arguments --
+array(8) {
+  [u"one"]=>
+  int(1)
+  [u"two"]=>
+  int(2)
+  [u"three"]=>
+  int(1)
+  [0]=>
+  int(1)
+  [1]=>
+  unicode(3) "one"
+  [2]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 3 --
+-- With default argument --
+array(3) {
+  [u"f1"]=>
+  float(2.3333)
+  [u"f2"]=>
+  float(2.3333)
+  [u"f3"]=>
+  array(2) {
+    [0]=>
+    float(1.1)
+    [1]=>
+    float(2.22)
+  }
+}
+-- With more arguments --
+array(7) {
+  [u"f1"]=>
+  float(2.3333)
+  [u"f2"]=>
+  float(2.3333)
+  [u"f3"]=>
+  array(2) {
+    [0]=>
+    float(1.1)
+    [1]=>
+    float(2.22)
+  }
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 4 --
+-- With default argument --
+array(4) {
+  [u"f1"]=>
+  float(1.2)
+  [u"f2"]=>
+  float(3.33)
+  [0]=>
+  float(4.8999992284)
+  [u"f4"]=>
+  array(2) {
+    [0]=>
+    float(1.2)
+    [u"f4"]=>
+    float(1.2)
+  }
+}
+-- With more arguments --
+array(8) {
+  [u"f1"]=>
+  float(1.2)
+  [u"f2"]=>
+  float(3.33)
+  [0]=>
+  float(4.8999992284)
+  [u"f4"]=>
+  array(2) {
+    [0]=>
+    float(1.2)
+    [u"f4"]=>
+    float(1.2)
+  }
+  [1]=>
+  unicode(3) "one"
+  [2]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 5 --
+-- With default argument --
+array(4) {
+  [0]=>
+  unicode(6) "	Hello"
+  [u"array"]=>
+  unicode(6) "col	or"
+  [1]=>
+  unicode(7) "world"
+  [2]=>
+  unicode(6) "	Hello"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  unicode(6) "	Hello"
+  [u"array"]=>
+  array(4) {
+    [0]=>
+    unicode(6) "col	or"
+    [1]=>
+    unicode(1) "a"
+    [2]=>
+    unicode(1) "b"
+    [3]=>
+    unicode(1) "c"
+  }
+  [1]=>
+  unicode(7) "world"
+  [2]=>
+  unicode(6) "	Hello"
+  [3]=>
+  unicode(3) "one"
+  [4]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+}
+-- Iteration 6 --
+-- With default argument --
+array(4) {
+  [0]=>
+  unicode(7) "\tHello"
+  [u"array"]=>
+  unicode(7) "col\tor"
+  [1]=>
+  unicode(9) "\v\fworld"
+  [2]=>
+  unicode(7) "\tHello"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  unicode(7) "\tHello"
+  [u"array"]=>
+  array(4) {
+    [0]=>
+    unicode(7) "col\tor"
+    [1]=>
+    unicode(1) "a"
+    [2]=>
+    unicode(1) "b"
+    [3]=>
+    unicode(1) "c"
+  }
+  [1]=>
+  unicode(9) "\v\fworld"
+  [2]=>
+  unicode(7) "\tHello"
+  [3]=>
+  unicode(3) "one"
+  [4]=>
+  int(2)
+  [u"string"]=>
+  unicode(5) "hello"
+}
+-- Iteration 7 --
+-- With default argument --
+array(3) {
+  [0]=>
+  unicode(5) "hello"
+  [u"string"]=>
+  unicode(11) "Hello world"
+  [1]=>
+  unicode(11) "Hello world"
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  unicode(5) "hello"
+  [u"string"]=>
+  array(2) {
+    [0]=>
+    unicode(11) "Hello world"
+    [1]=>
+    unicode(5) "hello"
+  }
+  [1]=>
+  unicode(11) "Hello world"
+  [2]=>
+  unicode(3) "one"
+  [3]=>
+  int(2)
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+-- Iteration 8 --
+-- With default argument --
+array(5) {
+  [0]=>
+  object(classA)#%d (0) {
+  }
+  [u"string"]=>
+  NULL
+  [u"resource"]=>
+  resource(%d) of type (stream)
+  [1]=>
+  object(classA)#%d (0) {
+  }
+  [2]=>
+  resource(%d) of type (stream)
+}
+-- With more arguments --
+array(8) {
+  [0]=>
+  object(classA)#%d (0) {
+  }
+  [u"string"]=>
+  array(1) {
+    [0]=>
+    unicode(5) "hello"
+  }
+  [u"resource"]=>
+  resource(%d) of type (stream)
+  [1]=>
+  object(classA)#%d (0) {
+  }
+  [2]=>
+  resource(%d) of type (stream)
+  [3]=>
+  unicode(3) "one"
+  [4]=>
+  int(2)
+  [u"array"]=>
+  array(3) {
+    [0]=>
+    unicode(1) "a"
+    [1]=>
+    unicode(1) "b"
+    [2]=>
+    unicode(1) "c"
+  }
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation6.phpt b/ext/standard/tests/array/array_merge_recursive_variation6.phpt
new file mode 100644
index 0000000000..1b28c4ca1e
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation6.phpt
@@ -0,0 +1,192 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - array with duplicate keys
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing the functionality of array_merge_recursive() by passing 
+ * array having duplicate keys.
+*/
+
+echo "*** Testing array_merge_recursive() : array with duplicate keys for \$arr1 argument ***\n";
+
+/* initialize the array having duplicate keys */
+// array with numeric keys
+$arr1_numeric_key = array( 1 => "one", 2 => "two", 2 => array(1, 2), 3 => "three", 1 => array("duplicate", 'strings'));
+// array with string keys
+$arr1_string_key = array("str1" => "hello", "str2" => 111, "str1" => "world", "str2" => 111.111);
+
+// initialize the second argument
+$arr2 = array("one", "str1" => "two", array("one", "two"));
+
+echo "-- With default argument --\n";
+var_dump( array_merge_recursive($arr1_numeric_key) );
+var_dump( array_merge_recursive($arr1_string_key) );
+
+echo "-- With more arguments --\n";
+var_dump( array_merge_recursive($arr1_numeric_key, $arr2) );
+var_dump( array_merge_recursive($arr1_string_key, $arr2) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : array with duplicate keys for $arr1 argument ***
+-- With default argument --
+array(3) {
+  [0]=>
+  array(2) {
+    [0]=>
+    string(9) "duplicate"
+    [1]=>
+    string(7) "strings"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  string(5) "three"
+}
+array(2) {
+  ["str1"]=>
+  string(5) "world"
+  ["str2"]=>
+  float(111.111)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  array(2) {
+    [0]=>
+    string(9) "duplicate"
+    [1]=>
+    string(7) "strings"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  string(5) "three"
+  [3]=>
+  string(3) "one"
+  ["str1"]=>
+  string(3) "two"
+  [4]=>
+  array(2) {
+    [0]=>
+    string(3) "one"
+    [1]=>
+    string(3) "two"
+  }
+}
+array(4) {
+  ["str1"]=>
+  array(2) {
+    [0]=>
+    string(5) "world"
+    [1]=>
+    string(3) "two"
+  }
+  ["str2"]=>
+  float(111.111)
+  [0]=>
+  string(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    string(3) "one"
+    [1]=>
+    string(3) "two"
+  }
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : array with duplicate keys for $arr1 argument ***
+-- With default argument --
+array(3) {
+  [0]=>
+  array(2) {
+    [0]=>
+    unicode(9) "duplicate"
+    [1]=>
+    unicode(7) "strings"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  unicode(5) "three"
+}
+array(2) {
+  [u"str1"]=>
+  unicode(5) "world"
+  [u"str2"]=>
+  float(111.111)
+}
+-- With more arguments --
+array(6) {
+  [0]=>
+  array(2) {
+    [0]=>
+    unicode(9) "duplicate"
+    [1]=>
+    unicode(7) "strings"
+  }
+  [1]=>
+  array(2) {
+    [0]=>
+    int(1)
+    [1]=>
+    int(2)
+  }
+  [2]=>
+  unicode(5) "three"
+  [3]=>
+  unicode(3) "one"
+  [u"str1"]=>
+  unicode(3) "two"
+  [4]=>
+  array(2) {
+    [0]=>
+    unicode(3) "one"
+    [1]=>
+    unicode(3) "two"
+  }
+}
+array(4) {
+  [u"str1"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "world"
+    [1]=>
+    unicode(3) "two"
+  }
+  [u"str2"]=>
+  float(111.111)
+  [0]=>
+  unicode(3) "one"
+  [1]=>
+  array(2) {
+    [0]=>
+    unicode(3) "one"
+    [1]=>
+    unicode(3) "two"
+  }
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation7.phpt b/ext/standard/tests/array/array_merge_recursive_variation7.phpt
new file mode 100644
index 0000000000..41a35bd43e
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation7.phpt
@@ -0,0 +1,123 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - array with reference variables
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing the functionality of array_merge_recursive() by passing 
+ * array having reference variables.
+*/
+
+echo "*** Testing array_merge_recursive() : array with reference variables for \$arr1 argument ***\n";
+
+$value1 = 10;
+$value2 = "hello";
+$value3 = 0;
+$value4 = &$value2;
+
+// input array containing elements as reference variables
+$arr1 = array(
+  0 => 0,
+  1 => &$value4,
+  2 => &$value2,
+  3 => "hello",
+  4 => &$value3,
+  $value4 => &$value2
+);
+
+// initialize the second argument
+$arr2 = array($value4 => "hello", &$value2);
+
+echo "-- With default argument --\n";
+var_dump( array_merge_recursive($arr1) );
+
+echo "-- With more arguments --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : array with reference variables for $arr1 argument ***
+-- With default argument --
+array(6) {
+  [0]=>
+  int(0)
+  [1]=>
+  &string(5) "hello"
+  [2]=>
+  &string(5) "hello"
+  [3]=>
+  string(5) "hello"
+  [4]=>
+  &int(0)
+  ["hello"]=>
+  &string(5) "hello"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  int(0)
+  [1]=>
+  &string(5) "hello"
+  [2]=>
+  &string(5) "hello"
+  [3]=>
+  string(5) "hello"
+  [4]=>
+  &int(0)
+  ["hello"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(5) "hello"
+  }
+  [5]=>
+  &string(5) "hello"
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : array with reference variables for $arr1 argument ***
+-- With default argument --
+array(6) {
+  [0]=>
+  int(0)
+  [1]=>
+  &unicode(5) "hello"
+  [2]=>
+  &unicode(5) "hello"
+  [3]=>
+  unicode(5) "hello"
+  [4]=>
+  &int(0)
+  [u"hello"]=>
+  &unicode(5) "hello"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  int(0)
+  [1]=>
+  &unicode(5) "hello"
+  [2]=>
+  &unicode(5) "hello"
+  [3]=>
+  unicode(5) "hello"
+  [4]=>
+  &int(0)
+  [u"hello"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(5) "hello"
+  }
+  [5]=>
+  &unicode(5) "hello"
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation8.phpt b/ext/standard/tests/array/array_merge_recursive_variation8.phpt
new file mode 100644
index 0000000000..6474a6274e
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation8.phpt
@@ -0,0 +1,112 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - binary safe checking
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing the functionality of array_merge_recursive() by passing an array having binary values.
+*/
+
+echo "*** Testing array_merge_recursive() : array with binary data for \$arr1 argument ***\n";
+
+// array with binary values
+$arr1 = array(b"1", b"hello" => "hello", b"world", "str1" => b"hello", "str2" => "world");
+
+// initialize the second argument
+$arr2 = array(b"str1" => b"binary", b"hello" => "binary", b"str2" => b"binary");
+ 
+echo "-- With default argument --\n";
+var_dump( array_merge_recursive($arr1) );
+
+echo "-- With more arguments --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : array with binary data for $arr1 argument ***
+-- With default argument --
+array(5) {
+  [0]=>
+  string(1) "1"
+  ["hello"]=>
+  string(5) "hello"
+  [1]=>
+  string(5) "world"
+  ["str1"]=>
+  string(5) "hello"
+  ["str2"]=>
+  string(5) "world"
+}
+-- With more arguments --
+array(5) {
+  [0]=>
+  string(1) "1"
+  ["hello"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(6) "binary"
+  }
+  [1]=>
+  string(5) "world"
+  ["str1"]=>
+  array(2) {
+    [0]=>
+    string(5) "hello"
+    [1]=>
+    string(6) "binary"
+  }
+  ["str2"]=>
+  array(2) {
+    [0]=>
+    string(5) "world"
+    [1]=>
+    string(6) "binary"
+  }
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : array with binary data for $arr1 argument ***
+-- With default argument --
+array(5) {
+  [0]=>
+  string(1) "1"
+  ["hello"]=>
+  unicode(5) "hello"
+  [1]=>
+  string(5) "world"
+  [u"str1"]=>
+  string(5) "hello"
+  [u"str2"]=>
+  unicode(5) "world"
+}
+-- With more arguments --
+array(7) {
+  [0]=>
+  string(1) "1"
+  ["hello"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "hello"
+    [1]=>
+    unicode(6) "binary"
+  }
+  [1]=>
+  string(5) "world"
+  [u"str1"]=>
+  string(5) "hello"
+  [u"str2"]=>
+  unicode(5) "world"
+  ["str1"]=>
+  string(6) "binary"
+  ["str2"]=>
+  string(6) "binary"
+}
+Done
diff --git a/ext/standard/tests/array/array_merge_recursive_variation9.phpt b/ext/standard/tests/array/array_merge_recursive_variation9.phpt
new file mode 100644
index 0000000000..966e2cb979
--- /dev/null
+++ b/ext/standard/tests/array/array_merge_recursive_variation9.phpt
@@ -0,0 +1,185 @@
+--TEST--
+Test array_merge_recursive() function : usage variations - common key and value(Bug#43559)
+--FILE--
+<?php
+/* Prototype  : array array_merge_recursive(array $arr1[, array $...])
+ * Description: Recursively merges elements from passed arrays into one array
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Testing the functionality of array_merge_recursive() by passing 
+ * arrays having common key and value.
+*/
+
+echo "*** Testing array_merge_recursive() : arrays with common key and value ***\n";
+
+/* initialize the array having duplicate values */
+
+// integer values
+$arr1 = array("a" => 1, "b" => 2);
+$arr2 = array("b" => 2, "c" => 4);
+echo "-- Integer values --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+// float values
+$arr1 = array("a" => 1.1, "b" => 2.2);
+$arr2 = array("b" => 2.2, "c" => 3.3);
+echo "-- Float values --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+// string values
+$arr1 = array("a" => "hello", "b" => "world");
+$arr2 = array("b" => "world", "c" => "string");
+echo "-- String values --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+// boolean values
+$arr1 = array("a" => true, "b" => false);
+$arr2 = array("b" => false);
+echo "-- Boolean values --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+// null values
+$arr1 = array( "a" => NULL);
+$arr2 = array( "a" => NULL);
+echo "-- Null values --\n";
+var_dump( array_merge_recursive($arr1, $arr2) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_merge_recursive() : arrays with common key and value ***
+-- Integer values --
+array(3) {
+  ["a"]=>
+  int(1)
+  ["b"]=>
+  array(2) {
+    [0]=>
+    int(2)
+    [1]=>
+    int(2)
+  }
+  ["c"]=>
+  int(4)
+}
+-- Float values --
+array(3) {
+  ["a"]=>
+  float(1.1)
+  ["b"]=>
+  array(2) {
+    [0]=>
+    float(2.2)
+    [1]=>
+    float(2.2)
+  }
+  ["c"]=>
+  float(3.3)
+}
+-- String values --
+array(3) {
+  ["a"]=>
+  string(5) "hello"
+  ["b"]=>
+  array(2) {
+    [0]=>
+    string(5) "world"
+    [1]=>
+    string(5) "world"
+  }
+  ["c"]=>
+  string(6) "string"
+}
+-- Boolean values --
+array(2) {
+  ["a"]=>
+  bool(true)
+  ["b"]=>
+  array(2) {
+    [0]=>
+    bool(false)
+    [1]=>
+    bool(false)
+  }
+}
+-- Null values --
+array(1) {
+  ["a"]=>
+  array(2) {
+    [0]=>
+    NULL
+    [1]=>
+    NULL
+  }
+}
+Done
+--UEXPECTF--
+
+*** Testing array_merge_recursive() : arrays with common key and value ***
+-- Integer values --
+array(3) {
+  [u"a"]=>
+  int(1)
+  [u"b"]=>
+  array(2) {
+    [0]=>
+    int(2)
+    [1]=>
+    int(2)
+  }
+  [u"c"]=>
+  int(4)
+}
+-- Float values --
+array(3) {
+  [u"a"]=>
+  float(1.1)
+  [u"b"]=>
+  array(2) {
+    [0]=>
+    float(2.2)
+    [1]=>
+    float(2.2)
+  }
+  [u"c"]=>
+  float(3.3)
+}
+-- String values --
+array(3) {
+  [u"a"]=>
+  unicode(5) "hello"
+  [u"b"]=>
+  array(2) {
+    [0]=>
+    unicode(5) "world"
+    [1]=>
+    unicode(5) "world"
+  }
+  [u"c"]=>
+  unicode(6) "string"
+}
+-- Boolean values --
+array(2) {
+  [u"a"]=>
+  bool(true)
+  [u"b"]=>
+  array(2) {
+    [0]=>
+    bool(false)
+    [1]=>
+    bool(false)
+  }
+}
+-- Null values --
+array(1) {
+  [u"a"]=>
+  array(2) {
+    [0]=>
+    NULL
+    [1]=>
+    NULL
+  }
+}
+Done