From 6eaef0712ee1bb5b49c1f42e5b7c6b7abbbd093c Mon Sep 17 00:00:00 2001
From: Raghubansh Kumar <kraghuba@php.net>
Date: Sat, 29 Sep 2007 09:18:07 +0000
Subject: [PATCH] New testcases for strrchr() function

---
 ext/standard/tests/strings/strrchr_basic.phpt |  57 +++++
 ext/standard/tests/strings/strrchr_error.phpt |  40 ++++
 .../tests/strings/strrchr_variation1.phpt     | Bin 0 -> 4406 bytes
 .../tests/strings/strrchr_variation10.phpt    | 188 +++++++++++++++
 .../tests/strings/strrchr_variation11.phpt    | 159 +++++++++++++
 .../tests/strings/strrchr_variation12.phpt    | Bin 0 -> 1128 bytes
 .../tests/strings/strrchr_variation2.phpt     | 220 ++++++++++++++++++
 .../tests/strings/strrchr_variation3.phpt     |  43 ++++
 .../tests/strings/strrchr_variation4.phpt     |  58 +++++
 .../tests/strings/strrchr_variation5.phpt     |  57 +++++
 .../tests/strings/strrchr_variation6.phpt     |  45 ++++
 .../tests/strings/strrchr_variation7.phpt     |  47 ++++
 .../tests/strings/strrchr_variation8.phpt     |  41 ++++
 .../tests/strings/strrchr_variation9.phpt     | 196 ++++++++++++++++
 14 files changed, 1151 insertions(+)
 create mode 100644 ext/standard/tests/strings/strrchr_basic.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_error.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation1.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation10.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation11.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation12.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation2.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation3.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation4.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation5.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation6.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation7.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation8.phpt
 create mode 100644 ext/standard/tests/strings/strrchr_variation9.phpt

diff --git a/ext/standard/tests/strings/strrchr_basic.phpt b/ext/standard/tests/strings/strrchr_basic.phpt
new file mode 100644
index 0000000000..f396834837
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_basic.phpt
@@ -0,0 +1,57 @@
+--TEST--
+Test strrchr() function : basic functionality 
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+echo "*** Testing strrchr() function: basic functionality ***\n";
+var_dump( strrchr("Hello, World", "H") ); //needle as single char
+var_dump( strrchr("Hello, World", "Hello") ); //needle as a first word of haystack
+var_dump( strrchr('Hello, World', 'H') ); 
+var_dump( strrchr('Hello, World', 'Hello') ); 
+
+//considering case
+var_dump( strrchr("Hello, World", "h") );
+var_dump( strrchr("Hello, World", "hello") );
+
+//needle as second word of haystack
+var_dump( strrchr("Hello, World", "World") );
+var_dump( strrchr('Hello, World', 'World') );
+
+//needle as special char
+var_dump( strrchr("Hello, World", ",") );
+var_dump( strrchr('Hello, World', ',') );
+
+var_dump( strrchr("Hello, World", "Hello, World") ); //needle as haystack
+
+//needle string containing one existing and one non-existing char
+var_dump( strrchr("Hello, World", "Hi") );
+
+//multiple existance of needle in haystack
+var_dump( strrchr("Hello, World", "o") );
+var_dump( strrchr("Hello, World", "ooo") );
+
+var_dump( strrchr("Hello, World", "Zzzz") ); //non-existant needle in haystack
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: basic functionality ***
+string(12) "Hello, World"
+string(12) "Hello, World"
+string(12) "Hello, World"
+string(12) "Hello, World"
+bool(false)
+bool(false)
+string(5) "World"
+string(5) "World"
+string(7) ", World"
+string(7) ", World"
+string(12) "Hello, World"
+string(12) "Hello, World"
+string(4) "orld"
+string(4) "orld"
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_error.phpt b/ext/standard/tests/strings/strrchr_error.phpt
new file mode 100644
index 0000000000..8c2881aa53
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_error.phpt
@@ -0,0 +1,40 @@
+--TEST--
+Test strrchr() function : error conditions 
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string. 
+ * Source code: ext/standard/string.c
+*/
+
+echo "*** Testing strrchr() function: error conditions ***\n";
+$haystack = "Hello";
+$needle = "Hello";
+$extra_arg = "Hello";
+
+echo "\n-- Testing strrchr() function with Zero arguments --";
+var_dump( strrchr() );
+
+echo "\n-- Testing strrchr() function with less than expected no. of arguments --";
+var_dump( strrchr($haystack) );
+
+echo "\n-- Testing strrchr() function with more than expected no. of arguments --";
+var_dump( strrchr($haystack, $needle, $extra_arg) );
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: error conditions ***
+
+-- Testing strrchr() function with Zero arguments --
+Warning: Wrong parameter count for strrchr() in %s on line %d
+NULL
+
+-- Testing strrchr() function with less than expected no. of arguments --
+Warning: Wrong parameter count for strrchr() in %s on line %d
+NULL
+
+-- Testing strrchr() function with more than expected no. of arguments --
+Warning: Wrong parameter count for strrchr() in %s on line %d
+NULL
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation1.phpt b/ext/standard/tests/strings/strrchr_variation1.phpt
new file mode 100644
index 0000000000000000000000000000000000000000..91290ecf93f54a7ae65ceb40745361d1a77b6877
GIT binary patch
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diff --git a/ext/standard/tests/strings/strrchr_variation10.phpt b/ext/standard/tests/strings/strrchr_variation10.phpt
new file mode 100644
index 0000000000..5de3b22ffc
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation10.phpt
@@ -0,0 +1,188 @@
+--TEST--
+Test strrchr() function : usage variations - unexpected inputs for needle 
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function: with unexpected inputs for needle 
+ *  and expected type for haystack 
+*/
+
+echo "*** Testing strrchr() function with unexpected inputs for needle ***\n";
+
+// get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+// declaring a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$file_handle = fopen(__FILE__, "r");
+
+$haystacks =  array (
+  //integer numeric strings
+  "0",
+  "1",
+  "2",
+  "-2",
+
+  //float numeric strings
+  "10.5",
+  "-10.5",
+  "10.5e10",
+  "10.6E-10",
+  ".5",
+
+  //regular strings
+  "array",
+  "a",
+  "r",
+  "y",
+  "ay",
+  "true",
+  "false",
+  "TRUE",
+  "FALSE",
+  "NULL",
+  "null",
+  "object",
+
+  //empty string
+  "",
+  '',
+
+  //resource variable in string form
+  "\$file_handle",
+
+  //undefined variable in string form
+  @"$undefined_var",
+  @"$unset_var"
+);
+
+// array with different values
+$needles =  array (
+
+  // integer values
+  0,
+  1,
+  12345,
+  -2345,
+
+  // float values
+  10.5,
+  -10.5,
+  10.5e10,
+  10.6E-10,
+  .5,
+
+  // array values
+  array(),
+  array(0),
+  array(1),
+  array(1, 2),
+  array('color' => 'red', 'item' => 'pen'),
+
+  // boolean values
+  true,
+  false,
+  TRUE,
+  FALSE,
+
+  // null vlaues
+  NULL,
+  null,
+
+  // objects
+  new sample(),
+
+  // empty string
+  "",
+  '',
+
+  // resource
+  $file_handle,
+
+  // undefined variable
+  @$undefined_var,
+
+  // unset variable
+  @$unset_var
+);
+
+// loop through each element of the array and check the working of strrchr()
+$count = 1;
+for($index = 0; $index < count($haystacks); $index++) {
+  echo "-- Iteration $count --\n";
+  var_dump( strrchr($haystacks[$index], $needles[$index]) );
+  $count ++;
+}
+
+fclose($file_handle);  //closing the file handle
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function with unexpected inputs for needle ***
+-- Iteration 1 --
+bool(false)
+-- Iteration 2 --
+bool(false)
+-- Iteration 3 --
+bool(false)
+-- Iteration 4 --
+bool(false)
+-- Iteration 5 --
+bool(false)
+-- Iteration 6 --
+bool(false)
+-- Iteration 7 --
+bool(false)
+-- Iteration 8 --
+bool(false)
+-- Iteration 9 --
+bool(false)
+-- Iteration 10 --
+bool(false)
+-- Iteration 11 --
+bool(false)
+-- Iteration 12 --
+bool(false)
+-- Iteration 13 --
+bool(false)
+-- Iteration 14 --
+bool(false)
+-- Iteration 15 --
+bool(false)
+-- Iteration 16 --
+bool(false)
+-- Iteration 17 --
+bool(false)
+-- Iteration 18 --
+bool(false)
+-- Iteration 19 --
+bool(false)
+-- Iteration 20 --
+bool(false)
+-- Iteration 21 --
+
+Notice: Object of class sample could not be converted to int in %s on line %d
+bool(false)
+-- Iteration 22 --
+bool(false)
+-- Iteration 23 --
+bool(false)
+-- Iteration 24 --
+bool(false)
+-- Iteration 25 --
+bool(false)
+-- Iteration 26 --
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation11.phpt b/ext/standard/tests/strings/strrchr_variation11.phpt
new file mode 100644
index 0000000000..d04710d7d7
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation11.phpt
@@ -0,0 +1,159 @@
+--TEST--
+Test strrchr() function : usage variations - unexpected inputs for haystack and needle
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function with unexpected inputs for haystack and needle */
+
+echo "*** Testing strrchr() function: with unexpected inputs for haystack and needle ***\n";
+
+// get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+// declaring a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$file_handle = fopen(__FILE__, "r");
+
+// array with different values
+$values =  array (
+
+  // integer values
+  0,
+  1,
+  12345,
+  -2345,
+
+  // float values
+  10.5,
+  -10.5,
+  10.5e10,
+  10.6E-10,
+  .5,
+
+  // array values
+  array(),
+  array(0),
+  array(1),
+  array(1, 2),
+  array('color' => 'red', 'item' => 'pen'),
+
+  // boolean values
+  true,
+  false,
+  TRUE,
+  FALSE,
+
+  // objects
+  new sample(),
+
+  // empty string
+  "",
+  '',
+
+  // null vlaues
+  NULL,
+  null,
+
+  // resource
+  $file_handle,
+
+  // undefined variable
+  @$undefined_var,
+
+  // unset variable
+  @$unset_var
+);
+
+
+// loop through each element of the array and check the working of strrchr()
+$counter = 1;
+for($index = 0; $index < count($values); $index ++) {
+  echo "-- Iteration $counter --\n";
+  $haystack = $values[$index];
+
+  var_dump( strrchr($values[$index], $values[$index]) );
+  $counter ++;
+}
+
+fclose($file_handle);  //closing the file handle
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with unexpected inputs for haystack and needle ***
+-- Iteration 1 --
+bool(false)
+-- Iteration 2 --
+bool(false)
+-- Iteration 3 --
+bool(false)
+-- Iteration 4 --
+bool(false)
+-- Iteration 5 --
+bool(false)
+-- Iteration 6 --
+bool(false)
+-- Iteration 7 --
+bool(false)
+-- Iteration 8 --
+bool(false)
+-- Iteration 9 --
+bool(false)
+-- Iteration 10 --
+
+Notice: Array to string conversion in %s on line %d
+bool(false)
+-- Iteration 11 --
+
+Notice: Array to string conversion in %s on line %d
+bool(false)
+-- Iteration 12 --
+
+Notice: Array to string conversion in %s on line %d
+bool(false)
+-- Iteration 13 --
+
+Notice: Array to string conversion in %s on line %d
+bool(false)
+-- Iteration 14 --
+
+Notice: Array to string conversion in %s on line %d
+bool(false)
+-- Iteration 15 --
+bool(false)
+-- Iteration 16 --
+bool(false)
+-- Iteration 17 --
+bool(false)
+-- Iteration 18 --
+bool(false)
+-- Iteration 19 --
+
+Notice: Object of class sample could not be converted to int in %s on line %d
+bool(false)
+-- Iteration 20 --
+bool(false)
+-- Iteration 21 --
+bool(false)
+-- Iteration 22 --
+bool(false)
+-- Iteration 23 --
+bool(false)
+-- Iteration 24 --
+bool(false)
+-- Iteration 25 --
+bool(false)
+-- Iteration 26 --
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation12.phpt b/ext/standard/tests/strings/strrchr_variation12.phpt
new file mode 100644
index 0000000000000000000000000000000000000000..c31e0c86ced29638a1a834e505ab6583f50e3abe
GIT binary patch
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literal 0
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diff --git a/ext/standard/tests/strings/strrchr_variation2.phpt b/ext/standard/tests/strings/strrchr_variation2.phpt
new file mode 100644
index 0000000000..0b15ceeeb2
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation2.phpt
@@ -0,0 +1,220 @@
+--TEST--
+Test strrchr() function : usage variations - single quoted strings
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function by passing various single quoted strings to 'haystack' & 'needle' */
+
+echo "*** Testing strrchr() function: with various single quoted strings ***";
+$haystack = 'Hello,\t\n\0\n  $&!#%\o,()*+-./:;<=>?@hello123456he \x234 \101 ';
+$needle = array(
+  //regular strings
+  'l',
+  'L',
+  'HELLO',
+  'hEllo',
+
+  //escape characters
+  '\t',
+  '\T',
+  '     ',
+  '\n',
+  '\N',
+  '
+',  //new line
+
+  //nulls
+  '\0',
+  NULL,
+  null,
+
+  //boolean false
+  FALSE,
+  false,
+
+  //empty string
+  '',
+
+  //special chars
+  ' ',
+  '$',
+  ' $',
+  '&',
+  '!#',
+  '%\o',
+  '\o,',
+  '()',
+  '*+',
+  '+',
+  '-',
+  '.',
+  '.;',
+  ':;',
+  ';',
+  '<=>',
+  '>',
+  '=>',
+  '?',
+  '@',
+  '@hEllo',
+
+  '12345', //decimal numeric string
+  '\x23',  //hexadecimal numeric string
+  '#',  //hexadecimal numeric string
+  '\101',  //octal numeric string
+  'A',
+  '456HEE',  //numerics + chars
+  42, //needle as int(ASCII value of '*')
+  $haystack  //haystack as needle
+);
+  
+/* loop through to get the position of the needle in haystack string */
+$count = 1;
+for($index=0; $index<count($needle); $index++) {
+  echo "\n-- Iteration $count --\n";
+  var_dump( strrchr($haystack, $needle[$index]) );
+  $count ++;
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with various single quoted strings ***
+-- Iteration 1 --
+string(22) "lo123456he \x234 \101 "
+
+-- Iteration 2 --
+bool(false)
+
+-- Iteration 3 --
+string(63) "Hello,\t\n\0\n  $&!#%\o,()*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 4 --
+string(14) "he \x234 \101 "
+
+-- Iteration 5 --
+string(5) "\101 "
+
+-- Iteration 6 --
+string(5) "\101 "
+
+-- Iteration 7 --
+string(1) " "
+
+-- Iteration 8 --
+string(5) "\101 "
+
+-- Iteration 9 --
+string(5) "\101 "
+
+-- Iteration 10 --
+bool(false)
+
+-- Iteration 11 --
+string(5) "\101 "
+
+-- Iteration 12 --
+bool(false)
+
+-- Iteration 13 --
+bool(false)
+
+-- Iteration 14 --
+bool(false)
+
+-- Iteration 15 --
+bool(false)
+
+-- Iteration 16 --
+bool(false)
+
+-- Iteration 17 --
+string(1) " "
+
+-- Iteration 18 --
+string(47) "$&!#%\o,()*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 19 --
+string(1) " "
+
+-- Iteration 20 --
+string(46) "&!#%\o,()*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 21 --
+string(45) "!#%\o,()*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 22 --
+string(43) "%\o,()*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 23 --
+string(5) "\101 "
+
+-- Iteration 24 --
+string(39) "()*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 25 --
+string(37) "*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 26 --
+string(36) "+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 27 --
+string(35) "-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 28 --
+string(34) "./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 29 --
+string(34) "./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 30 --
+string(32) ":;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 31 --
+string(31) ";<=>?@hello123456he \x234 \101 "
+
+-- Iteration 32 --
+string(30) "<=>?@hello123456he \x234 \101 "
+
+-- Iteration 33 --
+string(28) ">?@hello123456he \x234 \101 "
+
+-- Iteration 34 --
+string(29) "=>?@hello123456he \x234 \101 "
+
+-- Iteration 35 --
+string(27) "?@hello123456he \x234 \101 "
+
+-- Iteration 36 --
+string(26) "@hello123456he \x234 \101 "
+
+-- Iteration 37 --
+string(26) "@hello123456he \x234 \101 "
+
+-- Iteration 38 --
+string(2) "1 "
+
+-- Iteration 39 --
+string(5) "\101 "
+
+-- Iteration 40 --
+string(44) "#%\o,()*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 41 --
+string(5) "\101 "
+
+-- Iteration 42 --
+bool(false)
+
+-- Iteration 43 --
+string(7) "4 \101 "
+
+-- Iteration 44 --
+string(37) "*+-./:;<=>?@hello123456he \x234 \101 "
+
+-- Iteration 45 --
+string(63) "Hello,\t\n\0\n  $&!#%\o,()*+-./:;<=>?@hello123456he \x234 \101 "
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation3.phpt b/ext/standard/tests/strings/strrchr_variation3.phpt
new file mode 100644
index 0000000000..1d0aa30091
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation3.phpt
@@ -0,0 +1,43 @@
+--TEST--
+Test strrchr() function : usage variations - multi line heredoc string for 'haystack'
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function by passing multi-line heredoc string for haystack and
+ *    with various needles
+*/
+
+echo "*** Testing strrchr() function: with heredoc strings ***\n";
+$multi_line_str = <<<EOD
+Example of string
+spanning multiple lines
+using heredoc syntax.
+EOD;
+
+$needles = array(
+  "ing", 
+  "", 
+  " ",
+  $multi_line_str //needle as haystack 
+);
+
+//loop through to test strrchr() with each needle
+foreach($needles as $needle) {  
+  var_dump( strrchr($multi_line_str, $needle) );
+}
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with heredoc strings ***
+string(19) "ing heredoc syntax."
+bool(false)
+string(8) " syntax."
+string(63) "Example of string
+spanning multiple lines
+using heredoc syntax."
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation4.phpt b/ext/standard/tests/strings/strrchr_variation4.phpt
new file mode 100644
index 0000000000..8b2c10bf25
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation4.phpt
@@ -0,0 +1,58 @@
+--TEST--
+Test strrchr() function : usage variations - heredoc string containing special chars for 'haystack'
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function by passing heredoc string containing special chars for haystack
+ * and with various needles 
+*/
+
+echo "*** Testing strrchr() function: with heredoc strings ***\n";
+$special_chars_str = <<<EOD
+Example of heredoc string contains
+$#%^*&*_("_")!#@@!$#$^^&*(special)
+chars.
+EOD;
+
+$heredoc_needle = <<<EOD
+^^&*(
+EOD;
+
+$needles = array(
+  "!@@!",
+  '_',
+  '("_")',
+  "$*",
+  "(special)",
+  $heredoc_needle,  //needle as heredoc string
+  $special_chars_str  //needle as haystack
+);
+
+//loop through to test strrchr() with each needle
+foreach($needles as $needle) {
+  var_dump( strrchr($special_chars_str, $needle) );
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with heredoc strings ***
+string(24) "!$#$^^&*(special)
+chars."
+string(31) "_")!#@@!$#$^^&*(special)
+chars."
+string(16) "(special)
+chars."
+string(21) "$^^&*(special)
+chars."
+string(16) "(special)
+chars."
+string(19) "^&*(special)
+chars."
+string(76) "Example of heredoc string contains
+$#%^*&*_("_")!#@@!$#$^^&*(special)
+chars."
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation5.phpt b/ext/standard/tests/strings/strrchr_variation5.phpt
new file mode 100644
index 0000000000..fe9b91f1d7
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation5.phpt
@@ -0,0 +1,57 @@
+--TEST--
+Test strrchr() function : usage variations - heredoc string containing escape sequences for 'haystack'
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function by passing heredoc string containing 
+ *  escape sequences for haystack and with various needles
+*/
+
+echo "*** Testing strrchr() function: with heredoc strings ***\n";
+$escape_char_str = <<<EOD
+\tes\t st\r\rch\r using
+\escape \\seque\nce
+EOD;
+
+$needles = array(
+  "\t",
+  '\n',
+  "\r",
+  "\\",
+  $escape_char_str //needle as haystack
+);
+
+//loop through to test strrchr() with each needle
+foreach($needles as $needle) {
+  var_dump( strrchr($escape_char_str, $needle) );
+}
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with heredoc strings ***
+string(33) "	 st
+
+ch
+ using
+\escape \seque
+ce"
+string(9) "\seque
+ce"
+string(25) "
+ using
+\escape \seque
+ce"
+string(9) "\seque
+ce"
+string(33) "	 st
+
+ch
+ using
+\escape \seque
+ce"
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation6.phpt b/ext/standard/tests/strings/strrchr_variation6.phpt
new file mode 100644
index 0000000000..ba0ffadbd7
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation6.phpt
@@ -0,0 +1,45 @@
+--TEST--
+Test strrchr() function : usage variations - heredoc string containing quote chars for 'haystack'
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function by passing heredoc string containing quote chars for haystack
+ *  and with various needles
+*/
+
+echo "*** Testing strrchr() function: with heredoc strings ***\n";
+$quote_char_str = <<<EOD
+"things" "in" "double" "quote"
+'things' 'in' 'single' 'quote'
+EOD;
+
+$needles = array(
+  "things",
+  "\"things\"",
+  "\'things\'",
+  "in",
+  "quote",
+  $quote_char_str //needle as haystack
+);
+
+//loop through to test strrchr() with each needle
+foreach($needles as $needle) {
+  var_dump( strrchr($quote_char_str, $needle) );
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with heredoc strings ***
+string(3) "te'"
+string(32) ""
+'things' 'in' 'single' 'quote'"
+bool(false)
+string(14) "ingle' 'quote'"
+string(6) "quote'"
+string(32) ""
+'things' 'in' 'single' 'quote'"
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation7.phpt b/ext/standard/tests/strings/strrchr_variation7.phpt
new file mode 100644
index 0000000000..210ce81329
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation7.phpt
@@ -0,0 +1,47 @@
+--TEST--
+Test strrchr() function : usage variations - heredoc string containing blank line for 'haystack'
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function by passing heredoc string containing 
+ *  blank-line for haystack and with various needles
+*/
+
+echo "*** Testing strrchr() function: with heredoc strings ***\n";
+$blank_line = <<<EOD
+
+EOD;
+
+$needles = array(
+  "\n",
+  '\n',
+  "\r",
+  "\r\n",
+  "\t",
+  "",
+  $blank_line //needle as haystack
+);
+
+//loop through to test strrchr() with each needle
+foreach($needles as $needle) {
+  var_dump( strrchr($blank_line, $needle) );
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with heredoc strings ***
+string(1) "
+"
+bool(false)
+bool(false)
+string(1) "
+"
+bool(false)
+bool(false)
+string(1) "
+"
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation8.phpt b/ext/standard/tests/strings/strrchr_variation8.phpt
new file mode 100644
index 0000000000..3e298a0b3a
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation8.phpt
@@ -0,0 +1,41 @@
+--TEST--
+Test strrchr() function : usage variations - empty heredoc string for 'haystack'
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function by passing empty heredoc string for haystack
+ *  and with various needles
+*/
+
+echo "*** Testing strrchr() function: with heredoc strings ***\n";
+$empty_str = <<<EOD
+EOD;
+
+$needles = array(
+  "",
+  '',
+  FALSE,
+  NULL,
+  "\0",
+  $empty_str //needle as haystack
+);
+
+//loop through to test strrchr() with each needle
+foreach($needles as $needle) {
+  var_dump( strrchr($empty_str, $needle) );
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with heredoc strings ***
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrchr_variation9.phpt b/ext/standard/tests/strings/strrchr_variation9.phpt
new file mode 100644
index 0000000000..cd4c5b2c32
--- /dev/null
+++ b/ext/standard/tests/strings/strrchr_variation9.phpt
@@ -0,0 +1,196 @@
+--TEST--
+Test strrchr() function : usage variations - unexpected inputs for haystack
+--FILE--
+<?php
+/* Prototype  : string strrchr(string $haystack, string $needle);
+ * Description: Finds the last occurrence of a character in a string.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrchr() function with unexpected inputs for haystack 
+ *  and expected type for 'needle' 
+*/
+
+echo "*** Testing strrchr() function: with unexpected inputs for haystack ***\n";
+
+// get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+// declaring a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$file_handle = fopen(__FILE__, "r");
+
+// array with different values
+$haystacks =  array (
+
+  // integer values
+  0,
+  1,
+  12345,
+  -2345,
+
+  // float values
+  10.5,
+  -10.5,
+  10.5e10,
+  10.6E-10,
+  .5,
+
+  // array values
+  array(),
+  array(0),
+  array(1),
+  array(1, 2),
+  array('color' => 'red', 'item' => 'pen'),
+
+  // boolean values
+  true,
+  false,
+  TRUE,
+  FALSE,
+
+  // null vlaues
+  NULL,
+  null,
+
+  // objects
+  new sample(),
+
+  // empty string
+  "",
+  '',
+
+  // resource
+  $file_handle,
+
+  // undefined variable
+  @$undefined_var,
+
+  // unset variable
+  @$unset_var
+);
+
+$needles =  array (
+  //integer numeric strings
+  "0",
+  "1",
+  "2",
+  "-2",
+
+  //float numeric strings
+  "10.5",
+  "-10.5",
+  "10.5e10",
+  "10.6E-10",
+  ".5",
+
+  //regular strings
+  "array",
+  "a",
+  "r",
+  "y",
+  "ay",
+  "true",
+  "false",
+  "TRUE",
+  "FALSE",
+  "NULL",
+  "null",
+  "object",
+
+  //empty string
+  "",
+  '',
+ 
+  //resource variable in string form
+  "\$file_handle",
+
+  //undefined variable in string form
+  @"$undefined_var",
+  @"$unset_var"
+);
+
+// loop through each element of the array and check the working of strrchr()
+$count = 1;
+for($index = 0; $index < count($haystacks); $index++) {
+  echo "-- Iteration $count --\n";
+  var_dump( strrchr($haystacks[$index], $needles[$index]) );
+  $count ++;
+}
+
+fclose($file_handle);  //closing the file handle
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrchr() function: with unexpected inputs for haystack ***
+-- Iteration 1 --
+string(1) "0"
+-- Iteration 2 --
+string(1) "1"
+-- Iteration 3 --
+string(4) "2345"
+-- Iteration 4 --
+string(5) "-2345"
+-- Iteration 5 --
+string(4) "10.5"
+-- Iteration 6 --
+string(5) "-10.5"
+-- Iteration 7 --
+string(12) "105000000000"
+-- Iteration 8 --
+string(7) "1.06E-9"
+-- Iteration 9 --
+string(2) ".5"
+-- Iteration 10 --
+
+Notice: Array to string conversion in %s on line %d
+string(2) "ay"
+-- Iteration 11 --
+
+Notice: Array to string conversion in %s on line %d
+string(2) "ay"
+-- Iteration 12 --
+
+Notice: Array to string conversion in %s on line %d
+string(3) "ray"
+-- Iteration 13 --
+
+Notice: Array to string conversion in %s on line %d
+string(1) "y"
+-- Iteration 14 --
+
+Notice: Array to string conversion in %s on line %d
+string(2) "ay"
+-- Iteration 15 --
+bool(false)
+-- Iteration 16 --
+bool(false)
+-- Iteration 17 --
+bool(false)
+-- Iteration 18 --
+bool(false)
+-- Iteration 19 --
+bool(false)
+-- Iteration 20 --
+bool(false)
+-- Iteration 21 --
+string(6) "object"
+-- Iteration 22 --
+bool(false)
+-- Iteration 23 --
+bool(false)
+-- Iteration 24 --
+bool(false)
+-- Iteration 25 --
+bool(false)
+-- Iteration 26 --
+bool(false)
+*** Done ***
-- 
2.50.1