--- /dev/null
+--TEST--
+Test extract() function (error conditions)
+--FILE--
+<?php
+
+/* Testing Error Conditions */
+echo "*** Testing Error Conditions ***\n";
+
+/* Zero Arguments */
+var_dump( extract() );
+
+/* Invalid second argument ( only 0-6 is valid) */
+$arr = array(1);
+var_dump( extract($arr, -1 . "wddr") );
+var_dump( extract($arr, 7 , "wddr") );
+
+/* scalar argument */
+$val = 1;
+var_dump( extract($val) );
+
+/* string argument */
+$str = "test";
+var_dump( extract($str) );
+
+/* More than valid number of arguments i.e. 3 args */
+var_dump( extract($arr, EXTR_SKIP, "aa", "ee") );
+
+/* Two Arguments, second as prefix but without prefix string as third argument */
+var_dump( extract($arr,EXTR_PREFIX_IF_EXISTS) );
+
+echo "Done\n";
+?>
+
+--EXPECTF--
+*** Testing Error Conditions ***
+
+Warning: Wrong parameter count for extract() in %s on line %d
+NULL
+
+Warning: extract(): Unknown extract type in %s on line %d
+NULL
+
+Warning: extract(): Unknown extract type in %s on line %d
+NULL
+
+Warning: extract(): First argument should be an array in %s on line %d
+NULL
+
+Warning: extract(): First argument should be an array in %s on line %d
+NULL
+
+Warning: Wrong parameter count for extract() in %s on line %d
+NULL
+
+Warning: extract(): Prefix expected to be specified in %s on line %d
+NULL
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 1)
+--FILE--
+<?php
+
+$val = 4;
+$str = "John";
+
+debug_zval_dump($val);
+debug_zval_dump($str);
+
+/* Extracting Global Variables */
+var_dump(extract($GLOBALS, EXTR_REFS));
+debug_zval_dump($val);
+debug_zval_dump($str);
+
+echo "\nDone";
+?>
+
+--EXPECTF--
+long(4) refcount(2)
+string(4) "John" refcount(2)
+int(%d)
+long(4) refcount(2)
+string(4) "John" refcount(2)
+
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 2)
+--FILE--
+<?php
+
+/* various combinations of arrays to be used for the test */
+$mixed_array = array(
+ array(),
+ array( 1,2,3,4,5,6,7,8,9 ),
+ array( "One", "Two", "Three", "Four", "Five" ),
+);
+
+$counter = 0;
+
+foreach ( $mixed_array as $sub_array ) {
+ echo "\n-- Iteration $counter --\n";
+ $counter++;
+
+ var_dump ( extract($sub_array)); /* Single Argument */
+
+ /* variations of two arguments */
+ var_dump ( extract($sub_array, EXTR_OVERWRITE));
+ var_dump ( extract($sub_array, EXTR_SKIP));
+ var_dump ( extract($sub_array, EXTR_IF_EXISTS));
+
+ /* variations of three arguments with use of various extract types*/
+ var_dump ( extract($sub_array, EXTR_PREFIX_INVALID, "ssd"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_SAME, "sss"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "bb"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "")); // "_" taken as default prefix
+ var_dump ( extract($sub_array, EXTR_PREFIX_IF_EXISTS, "bb"));
+}
+
+echo "Done\n";
+?>
+--EXPECTF--
+-- Iteration 0 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(0)
+int(0)
+int(0)
+int(0)
+int(0)
+
+-- Iteration 1 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(9)
+int(0)
+int(9)
+int(9)
+int(0)
+
+-- Iteration 2 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(5)
+int(0)
+int(5)
+int(5)
+int(0)
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 3)
+--FILE--
+<?php
+
+/* various combinations of arrays to be used for the test */
+$mixed_array = array(
+ array( 6, "six", 7, "seven", 8, "eight", 9, "nine" ),
+ array( "a" => "aaa", "A" => "AAA", "c" => "ccc", "d" => "ddd", "e" => "eee" ),
+ array( "1" => "one", "2" => "two", "3" => "three", "4" => "four", "5" => "five" ),
+);
+
+$counter = 0;
+
+foreach ( $mixed_array as $sub_array ) {
+ echo "\n-- Iteration $counter --\n";
+ $counter++;
+
+ var_dump ( extract($sub_array)); /* Single Argument */
+
+ /* variations of two arguments */
+ var_dump ( extract($sub_array, EXTR_OVERWRITE));
+ var_dump ( extract($sub_array, EXTR_SKIP));
+ var_dump ( extract($sub_array, EXTR_IF_EXISTS));
+
+ /* variations of three arguments with use of various extract types*/
+ var_dump ( extract($sub_array, EXTR_PREFIX_INVALID, "ssd"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_SAME, "sss"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "bb"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "")); // "_" taken as default prefix
+ var_dump ( extract($sub_array, EXTR_PREFIX_IF_EXISTS, "bb"));
+}
+
+echo "Done\n";
+?>
+--EXPECTF--
+-- Iteration 0 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(8)
+int(0)
+int(8)
+int(8)
+int(0)
+
+-- Iteration 1 --
+int(5)
+int(5)
+int(0)
+int(5)
+int(5)
+int(5)
+int(5)
+int(5)
+int(5)
+
+-- Iteration 2 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(5)
+int(0)
+int(5)
+int(5)
+int(0)
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 4)
+--FILE--
+<?php
+
+$mixed_array = array(
+ array( 1 => "one", 2 => "two", 3 => 7, 4 => "four", 5 => "five" ),
+ array( "f" => "fff", "1" => "one", 4 => 6, "" => "blank", 2.4 => "float", "F" => "FFF",
+ "blank" => "", 3.7 => 3.7, 5.4 => 7, 6 => 8.6, '5' => "Five", "4name" => "jonny", "a" => NULL, NULL => 3 ),
+ array( 12, "name", 'age', '45' ),
+);
+
+$counter = 0;
+
+foreach ( $mixed_array as $sub_array ) {
+ echo "\n-- Iteration $counter --\n";
+ $counter++;
+
+ var_dump ( extract($sub_array)); /* Single Argument */
+
+ /* variations of two arguments */
+ var_dump ( extract($sub_array, EXTR_OVERWRITE));
+ var_dump ( extract($sub_array, EXTR_SKIP));
+ var_dump ( extract($sub_array, EXTR_IF_EXISTS));
+
+ /* variations of three arguments with use of various extract types*/
+ var_dump ( extract($sub_array, EXTR_PREFIX_INVALID, "ssd"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_SAME, "sss"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "bb"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "")); // "_" taken as default prefix
+ var_dump ( extract($sub_array, EXTR_PREFIX_IF_EXISTS, "bb"));
+}
+
+echo "Done\n";
+?>
+--EXPECTF--
+-- Iteration 0 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(5)
+int(0)
+int(5)
+int(5)
+int(0)
+
+-- Iteration 1 --
+int(4)
+int(4)
+int(0)
+int(4)
+int(12)
+int(4)
+int(11)
+int(11)
+int(4)
+
+-- Iteration 2 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(4)
+int(0)
+int(4)
+int(4)
+int(0)
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 5)
+--FILE--
+<?php
+
+$mixed_array = array(
+ array( array("oNe", "tWo", 4), array(10, 20, 30, 40, 50), array() ),
+ array( "one" => 1, "one" => 2, "three" => 3, 3, 4, 3 => 33, 4 => 44, 5, 6,
+ 5.4 => 54, 5.7 => 57, "5.4" => 554, "5.7" => 557 )
+);
+
+$counter = 0;
+
+foreach ( $mixed_array as $sub_array ) {
+ echo "\n-- Iteration $counter --\n";
+ $counter++;
+
+ var_dump ( extract($sub_array)); /* Single Argument */
+
+ /* variations of two arguments */
+ var_dump ( extract($sub_array, EXTR_OVERWRITE));
+ var_dump ( extract($sub_array, EXTR_SKIP));
+ var_dump ( extract($sub_array, EXTR_IF_EXISTS));
+
+ /* variations of three arguments with use of various extract types*/
+ var_dump ( extract($sub_array, EXTR_PREFIX_INVALID, "ssd"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_SAME, "sss"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "bb"));
+ var_dump ( extract($sub_array, EXTR_PREFIX_ALL, "")); // "_" taken as default prefix
+ var_dump ( extract($sub_array, EXTR_PREFIX_IF_EXISTS, "bb"));
+}
+
+echo "Done\n";
+?>
+--EXPECTF--
+-- Iteration 0 --
+int(0)
+int(0)
+int(0)
+int(0)
+int(3)
+int(0)
+int(3)
+int(3)
+int(0)
+
+-- Iteration 1 --
+int(2)
+int(2)
+int(0)
+int(2)
+int(8)
+int(2)
+int(8)
+int(8)
+int(2)
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 6)
+--FILE--
+<?php
+
+/* EXTR_REFS as second Argument */
+$a = array ('foo' => 'aaa');
+var_dump ( extract($a, EXTR_REFS));
+var_dump($foo);
+
+$b = $a;
+$b['foo'] = 'bbb';
+var_dump ( extract($a, EXTR_REFS));
+var_dump($foo);
+var_dump($a);
+
+echo "Done\n";
+?>
+
+--EXPECTF--
+int(1)
+string(3) "aaa"
+int(1)
+string(3) "bbb"
+array(1) {
+ ["foo"]=>
+ &string(3) "bbb"
+}
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 7)
+--FILE--
+<?php
+
+/* EXTR_PREFIX_ALL called twice with same prefix string */
+echo "\n*** Testing for EXTR_PREFIX_ALL called twice with same prefix string ***\n";
+$a = array( "1" => "one", "2" => "two", "3" => "three", "4" => "four", "5" => "five" );
+var_dump ( extract($a, EXTR_PREFIX_ALL, "same"));
+
+$b = array( "f" => "fff", "1" => "one", 4 => 6, "" => "blank", 2.4 => "float", "F" => "FFF",
+ "blank" => "", 3.7 => 3.7, 5.4 => 7, 6 => 8.6, '5' => "Five", "4name" => "jonny", "a" => NULL, NULL => 3 );
+var_dump ( extract($b, EXTR_PREFIX_ALL, "same"));
+var_dump ( extract($b, EXTR_PREFIX_ALL, "diff"));
+
+echo "Done\n";
+?>
+--EXPECTF--
+*** Testing for EXTR_PREFIX_ALL called twice with same prefix string ***
+int(5)
+int(11)
+int(11)
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 8)
+--FILE--
+<?php
+
+/* To show variables with numerical prefixes cannot be extracted */
+$var["i"] = 1;
+$var["j"] = 2;
+$var["k"] = 3;
+echo "\n*** Testing for Numerical prefixes ***\n";
+var_dump(extract($var));
+
+$var1["m"] = 1;
+$var1[2] = 2;
+$var1[] = 3;
+var_dump ( extract($var1));
+
+echo "\nDone";
+?>
+
+--EXPECTF--
+*** Testing for Numerical prefixes ***
+int(3)
+int(1)
+
+Done
--- /dev/null
+--TEST--
+Test extract() function (variation 9)
+--FILE--
+<?php
+/* Using Class and objects */
+echo "\n*** Testing for object ***\n";
+class classA
+{
+ public $v;
+}
+
+$A = new classA();
+var_dump ( extract(get_object_vars($A),EXTR_REFS));
+
+echo "Done\n";
+?>
+--EXPECTF--
+*** Testing for object ***
+int(1)
+Done