From 703626aa983d8c44a29b977cd07566fdb0446fdd Mon Sep 17 00:00:00 2001
From: Raghubansh Kumar <kraghuba@php.net>
Date: Fri, 5 Oct 2007 18:35:49 +0000
Subject: [PATCH] New testcases for strrpos() function

---
 .../tests/strings/strrpos_basic1.phpt         |  66 ++++
 .../tests/strings/strrpos_basic2.phpt         |  71 ++++
 ext/standard/tests/strings/strrpos_error.phpt |  48 +++
 .../tests/strings/strrpos_variation1.phpt     | 292 ++++++++++++++++
 .../tests/strings/strrpos_variation10.phpt    | 213 ++++++++++++
 .../tests/strings/strrpos_variation11.phpt    | 320 ++++++++++++++++++
 .../tests/strings/strrpos_variation12.phpt    |  68 ++++
 .../tests/strings/strrpos_variation13.phpt    |  70 ++++
 .../tests/strings/strrpos_variation14.phpt    | 224 ++++++++++++
 .../tests/strings/strrpos_variation15.phpt    | 260 ++++++++++++++
 .../tests/strings/strrpos_variation2.phpt     | 299 ++++++++++++++++
 .../tests/strings/strrpos_variation3.phpt     |  46 +++
 .../tests/strings/strrpos_variation4.phpt     |  52 +++
 .../tests/strings/strrpos_variation5.phpt     |  42 +++
 .../tests/strings/strrpos_variation6.phpt     |  43 +++
 .../tests/strings/strrpos_variation7.phpt     |  32 ++
 .../tests/strings/strrpos_variation8.phpt     |  98 ++++++
 .../tests/strings/strrpos_variation9.phpt     | 273 +++++++++++++++
 18 files changed, 2517 insertions(+)
 create mode 100644 ext/standard/tests/strings/strrpos_basic1.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_basic2.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_error.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation1.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation10.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation11.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation12.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation13.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation14.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation15.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation2.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation3.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation4.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation5.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation6.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation7.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation8.phpt
 create mode 100644 ext/standard/tests/strings/strrpos_variation9.phpt

diff --git a/ext/standard/tests/strings/strrpos_basic1.phpt b/ext/standard/tests/strings/strrpos_basic1.phpt
new file mode 100644
index 00000000000..11b083b4d43
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_basic1.phpt
@@ -0,0 +1,66 @@
+--TEST--
+Test strrpos() function : basic functionality - with default arguments
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'
+ * Source code: ext/standard/string.c
+*/
+
+echo "*** Testing strrpos() function: basic functionality ***\n";
+$heredoc_str = <<<EOD
+Hello, World
+EOD;
+
+echo "-- With default arguments --\n";
+//regular string for haystack & needle
+var_dump( strrpos("Hello, World", "Hello") );
+var_dump( strrpos('Hello, World', "hello") );
+var_dump( strrpos("Hello, World", 'World') );
+var_dump( strrpos('Hello, World', 'WORLD') );
+
+//single char for needle
+var_dump( strrpos("Hello, World", "o") );
+var_dump( strrpos("Hello, World", ",") );
+
+//heredoc string for haystack & needle
+var_dump( strrpos($heredoc_str, "Hello, World") );
+var_dump( strrpos($heredoc_str, 'Hello') );
+var_dump( strrpos($heredoc_str, $heredoc_str) );
+
+//unicodes
+var_dump( strrpos("Hello, World", (unicode)"o") );
+var_dump( strrpos((unicode)"Hello, World", ",") );
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: basic functionality ***
+-- With default arguments --
+int(0)
+bool(false)
+int(7)
+bool(false)
+int(8)
+int(5)
+int(0)
+int(0)
+int(0)
+int(8)
+int(5)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: basic functionality ***
+-- With default arguments --
+int(0)
+bool(false)
+int(7)
+bool(false)
+int(8)
+int(5)
+int(0)
+int(0)
+int(0)
+int(8)
+int(5)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_basic2.phpt b/ext/standard/tests/strings/strrpos_basic2.phpt
new file mode 100644
index 00000000000..49f2177d04e
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_basic2.phpt
@@ -0,0 +1,71 @@
+--TEST--
+Test strrpos() function : basic functionality - with all arguments
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'
+ * Source code: ext/standard/string.c
+*/
+
+echo "*** Testing strrpos() function: basic functionality ***\n";
+$heredoc_str = <<<EOD
+Hello, World
+EOD;
+
+echo "-- With all arguments --\n";
+//regular string for haystack & needle, with various offsets
+var_dump( strrpos("Hello, World", "Hello", 0) );
+var_dump( strrpos("Hello, World", 'Hello', 1) );
+var_dump( strrpos('Hello, World', 'World', 1) );
+var_dump( strrpos('Hello, World', "World", 5) );
+
+//heredoc string for haystack & needle, with various offsets
+var_dump( strrpos($heredoc_str, "Hello, World", 0) );
+var_dump( strrpos($heredoc_str, 'Hello', 0) );
+var_dump( strrpos($heredoc_str, 'Hello', 1) );
+var_dump( strrpos($heredoc_str, $heredoc_str, 0) );
+var_dump( strrpos($heredoc_str, $heredoc_str, 1) );
+
+//various offsets
+var_dump( strrpos("Hello, World", "o", 3) );
+var_dump( strrpos("Hello, World", "o", 6) );
+var_dump( strrpos("Hello, World", "o", 10) );
+var_dump( strrpos("Hello, World", "Hello, world", -2) );
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: basic functionality ***
+-- With all arguments --
+int(0)
+bool(false)
+int(7)
+int(7)
+int(0)
+int(0)
+bool(false)
+int(0)
+bool(false)
+int(8)
+int(8)
+bool(false)
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: basic functionality ***
+-- With all arguments --
+int(0)
+bool(false)
+int(7)
+int(7)
+int(0)
+int(0)
+bool(false)
+int(0)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+int(8)
+int(8)
+bool(false)
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_error.phpt b/ext/standard/tests/strings/strrpos_error.phpt
new file mode 100644
index 00000000000..2b753c54c23
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_error.phpt
@@ -0,0 +1,48 @@
+--TEST--
+Test strrpos() function : error conditions 
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+echo "*** Testing strrpos() function: error conditions ***";
+echo "\n-- With Zero arguments --";
+var_dump( strrpos() );
+
+echo "\n-- With less than expected number of arguments --";
+var_dump( strrpos("String") );
+
+echo "\n-- With more than expected number of arguments --";
+var_dump( strrpos("string", "String", 1, 'extra_arg') );
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: error conditions ***
+-- With Zero arguments --
+Warning: strrpos() expects at least 2 parameters, 0 given in %s on line %d
+bool(false)
+
+-- With less than expected number of arguments --
+Warning: strrpos() expects at least 2 parameters, 1 given in %s on line %d
+bool(false)
+
+-- With more than expected number of arguments --
+Warning: strrpos() expects at most 3 parameters, 4 given in %s on line %d
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: error conditions ***
+-- With Zero arguments --
+Warning: strrpos() expects at least 2 parameters, 0 given in %s on line %d
+bool(false)
+
+-- With less than expected number of arguments --
+Warning: strrpos() expects at least 2 parameters, 1 given in %s on line %d
+bool(false)
+
+-- With more than expected number of arguments --
+Warning: strrpos() expects at most 3 parameters, 4 given in %s on line %d
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation1.phpt b/ext/standard/tests/strings/strrpos_variation1.phpt
new file mode 100644
index 00000000000..bfd7d9d8433
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation1.phpt
@@ -0,0 +1,292 @@
+--TEST--
+Test strrpos() function : usage variations - double quoted strings for 'haystack' & 'needle' arguments
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function by passing double quoted strings for 'haystack' & 'needle' arguments */
+
+echo "*** Testing strrpos() function: with double quoted strings ***\n";
+$haystack = "Hello,\t\n\0\n  $&!#%()*<=>?@hello123456he \x234 \101 ";
+$needle = array(
+  //regular strings
+  "l",  
+  "L",
+  "HELLO",
+  "hEllo",
+
+  //escape characters
+  "\t",  
+  "\T",  //invalid input
+  "     ",
+  "\n",
+  "\N",  //invalid input
+  "
+",  //new line
+
+  //nulls
+  "\0",  
+  NULL,
+  null,
+
+  //boolean false
+  FALSE,  
+  false,
+
+  //empty string
+  "",
+
+  //special chars
+  " ",  
+  "$",
+  " $",
+  "&",
+  "!#", 
+  "()",
+  "<=>", 
+  ">",  
+  "=>",
+  "?",
+  "@",
+  "@hEllo",
+
+  "12345", //decimal numeric string  
+  "\x23",  //hexadecimal numeric string
+  "#",  //respective ASCII char of \x23
+  "\101",  //octal numeric string
+  "A",  //respective ASCII char of \101
+  "456HEE",  //numerics + chars
+  $haystack  //haystack as needle  
+);
+ 
+/* loop through to get the position of the needle in haystack string */
+$count = 1;
+for($index=0; $index<count($needle); $index++) {
+  echo "-- Iteration $count --\n";
+  var_dump( strrpos($haystack, $needle[$index]) );
+  var_dump( strrpos($haystack, $needle[$index], $index) );
+  $count++;
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with double quoted strings ***
+-- Iteration 1 --
+int(28)
+int(28)
+-- Iteration 2 --
+bool(false)
+bool(false)
+-- Iteration 3 --
+bool(false)
+bool(false)
+-- Iteration 4 --
+bool(false)
+bool(false)
+-- Iteration 5 --
+int(6)
+int(6)
+-- Iteration 6 --
+bool(false)
+bool(false)
+-- Iteration 7 --
+bool(false)
+bool(false)
+-- Iteration 8 --
+int(9)
+int(9)
+-- Iteration 9 --
+bool(false)
+bool(false)
+-- Iteration 10 --
+int(9)
+int(9)
+-- Iteration 11 --
+int(8)
+bool(false)
+-- Iteration 12 --
+int(8)
+bool(false)
+-- Iteration 13 --
+int(8)
+bool(false)
+-- Iteration 14 --
+int(8)
+bool(false)
+-- Iteration 15 --
+int(8)
+bool(false)
+-- Iteration 16 --
+bool(false)
+bool(false)
+-- Iteration 17 --
+int(43)
+int(43)
+-- Iteration 18 --
+int(12)
+bool(false)
+-- Iteration 19 --
+int(11)
+bool(false)
+-- Iteration 20 --
+int(13)
+bool(false)
+-- Iteration 21 --
+int(14)
+bool(false)
+-- Iteration 22 --
+int(17)
+bool(false)
+-- Iteration 23 --
+int(20)
+bool(false)
+-- Iteration 24 --
+int(22)
+bool(false)
+-- Iteration 25 --
+int(21)
+bool(false)
+-- Iteration 26 --
+int(23)
+bool(false)
+-- Iteration 27 --
+int(24)
+bool(false)
+-- Iteration 28 --
+bool(false)
+bool(false)
+-- Iteration 29 --
+int(30)
+int(30)
+-- Iteration 30 --
+int(39)
+int(39)
+-- Iteration 31 --
+int(39)
+int(39)
+-- Iteration 32 --
+int(42)
+int(42)
+-- Iteration 33 --
+int(42)
+int(42)
+-- Iteration 34 --
+bool(false)
+bool(false)
+-- Iteration 35 --
+int(0)
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with double quoted strings ***
+-- Iteration 1 --
+int(28)
+int(28)
+-- Iteration 2 --
+bool(false)
+bool(false)
+-- Iteration 3 --
+bool(false)
+bool(false)
+-- Iteration 4 --
+bool(false)
+bool(false)
+-- Iteration 5 --
+int(6)
+int(6)
+-- Iteration 6 --
+bool(false)
+bool(false)
+-- Iteration 7 --
+bool(false)
+bool(false)
+-- Iteration 8 --
+int(9)
+int(9)
+-- Iteration 9 --
+bool(false)
+bool(false)
+-- Iteration 10 --
+int(9)
+int(9)
+-- Iteration 11 --
+int(8)
+bool(false)
+-- Iteration 12 --
+int(8)
+bool(false)
+-- Iteration 13 --
+int(8)
+bool(false)
+-- Iteration 14 --
+int(8)
+bool(false)
+-- Iteration 15 --
+int(8)
+bool(false)
+-- Iteration 16 --
+bool(false)
+bool(false)
+-- Iteration 17 --
+int(43)
+int(43)
+-- Iteration 18 --
+int(12)
+bool(false)
+-- Iteration 19 --
+int(11)
+bool(false)
+-- Iteration 20 --
+int(13)
+bool(false)
+-- Iteration 21 --
+int(14)
+bool(false)
+-- Iteration 22 --
+int(17)
+bool(false)
+-- Iteration 23 --
+int(20)
+bool(false)
+-- Iteration 24 --
+int(22)
+bool(false)
+-- Iteration 25 --
+int(21)
+bool(false)
+-- Iteration 26 --
+int(23)
+bool(false)
+-- Iteration 27 --
+int(24)
+bool(false)
+-- Iteration 28 --
+bool(false)
+bool(false)
+-- Iteration 29 --
+int(30)
+int(30)
+-- Iteration 30 --
+int(39)
+int(39)
+-- Iteration 31 --
+int(39)
+int(39)
+-- Iteration 32 --
+int(42)
+int(42)
+-- Iteration 33 --
+int(42)
+int(42)
+-- Iteration 34 --
+bool(false)
+bool(false)
+-- Iteration 35 --
+int(0)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation10.phpt b/ext/standard/tests/strings/strrpos_variation10.phpt
new file mode 100644
index 00000000000..360a4779208
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation10.phpt
@@ -0,0 +1,213 @@
+--TEST--
+Test strrpos() function : usage variations - unexpected inputs for 'needle' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with unexpected inputs for 'needle' and 
+ *  an expected type of input for 'haystack' argument 
+*/
+
+echo "*** Testing strrpos() function with unexpected values for needle ***\n";
+
+//get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+//defining a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$file_handle = fopen(__FILE__, "r");
+
+$haystack = "string 0 1 2 -2 10.5 -10.5 10.5e10 10.6E-10 .5 array true false object \"\" null Resource";
+
+// array with different values
+$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,
+
+  // objects
+  new sample(),
+
+  // empty string
+  "",
+  '',
+
+  // null vlaues
+  NULL,
+  null,
+
+  // resource
+  $file_handle,
+
+  // undefined variable
+  @$undefined_var,
+
+  // unset variable
+  @$unset_var
+);
+
+// loop through each element of the 'needle' array to check the working of strrpos()
+$counter = 1;
+for($index = 0; $index < count($needles); $index ++) {
+  echo "-- Iteration $counter --\n";
+  var_dump( strrpos($haystack, $needles[$index]) );
+  $counter ++;
+}
+
+fclose($file_handle);  //closing the file handle
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function with unexpected values 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 --
+
+Notice: Object of class sample could not be converted to int in %s on line %d%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 ***
+--UEXPECTF--
+*** Testing strrpos() function with unexpected values for needle ***
+-- Iteration 1 --
+bool(false)
+-- Iteration 2 --
+bool(false)
+-- Iteration 3 --
+bool(false)
+-- Iteration 4 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 5 --
+bool(false)
+-- Iteration 6 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 7 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+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 --
+
+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/strrpos_variation11.phpt b/ext/standard/tests/strings/strrpos_variation11.phpt
new file mode 100644
index 00000000000..698c1dbc5c5
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation11.phpt
@@ -0,0 +1,320 @@
+--TEST--
+Test strrpos() function : usage variations - unexpected inputs for 'haystack' and 'needle' arguments
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with unexpected inputs for 'haystack' and 'needle' arguments */
+
+echo "*** Testing strrpos() function with unexpected values for haystack and needle ***\n";
+
+// get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+// defining a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$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
+  @$unset_var
+);
+
+
+// loop through each element of the array and check the working of strrpos()
+$counter = 1;
+for($index = 0; $index < count($values); $index ++) {
+  echo "-- Iteration $counter --\n";
+  $haystack = $values[$index];
+  var_dump( strrpos($values[$index], $values[$index]) );
+  var_dump( strrpos($values[$index], $values[$index], 1) );
+  $counter ++;
+}
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function with unexpected values for haystack and needle ***
+-- Iteration 1 --
+bool(false)
+bool(false)
+-- Iteration 2 --
+bool(false)
+bool(false)
+-- Iteration 3 --
+bool(false)
+bool(false)
+-- Iteration 4 --
+bool(false)
+bool(false)
+-- Iteration 5 --
+bool(false)
+bool(false)
+-- Iteration 6 --
+bool(false)
+bool(false)
+-- Iteration 7 --
+bool(false)
+bool(false)
+-- Iteration 8 --
+bool(false)
+bool(false)
+-- Iteration 9 --
+bool(false)
+bool(false)
+-- Iteration 10 --
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+-- Iteration 11 --
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+-- Iteration 12 --
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+-- Iteration 13 --
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+-- Iteration 14 --
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+
+Notice: Array to string conversion in %s on line %d%d
+bool(false)
+-- Iteration 15 --
+bool(false)
+bool(false)
+-- Iteration 16 --
+bool(false)
+bool(false)
+-- Iteration 17 --
+bool(false)
+bool(false)
+-- Iteration 18 --
+bool(false)
+bool(false)
+-- Iteration 19 --
+
+Notice: Object of class sample could not be converted to int in %s on line %d%d
+bool(false)
+
+Notice: Object of class sample could not be converted to int in %s on line %d%d
+bool(false)
+-- Iteration 20 --
+bool(false)
+bool(false)
+-- Iteration 21 --
+bool(false)
+bool(false)
+-- Iteration 22 --
+bool(false)
+bool(false)
+-- Iteration 23 --
+bool(false)
+bool(false)
+-- Iteration 24 --
+bool(false)
+bool(false)
+-- Iteration 25 --
+bool(false)
+bool(false)
+-- Iteration 26 --
+bool(false)
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function with unexpected values for haystack and needle ***
+-- Iteration 1 --
+bool(false)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 2 --
+bool(false)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 3 --
+bool(false)
+bool(false)
+-- Iteration 4 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 5 --
+bool(false)
+bool(false)
+-- Iteration 6 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 7 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 8 --
+bool(false)
+bool(false)
+-- Iteration 9 --
+bool(false)
+bool(false)
+-- Iteration 10 --
+
+Notice: Array to string conversion in %s on line %d
+bool(false)
+
+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)
+
+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)
+
+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)
+
+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)
+
+Notice: Array to string conversion in %s on line %d
+bool(false)
+-- Iteration 15 --
+bool(false)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 16 --
+bool(false)
+bool(false)
+-- Iteration 17 --
+bool(false)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 18 --
+bool(false)
+bool(false)
+-- Iteration 19 --
+
+Notice: Object of class sample could not be converted to int in %s on line %d
+bool(false)
+
+Notice: Object of class sample could not be converted to int in %s on line %d
+bool(false)
+-- Iteration 20 --
+bool(false)
+bool(false)
+-- Iteration 21 --
+bool(false)
+bool(false)
+-- Iteration 22 --
+bool(false)
+bool(false)
+-- Iteration 23 --
+bool(false)
+bool(false)
+-- Iteration 24 --
+bool(false)
+bool(false)
+-- Iteration 25 --
+bool(false)
+bool(false)
+-- Iteration 26 --
+bool(false)
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation12.phpt b/ext/standard/tests/strings/strrpos_variation12.phpt
new file mode 100644
index 00000000000..e4ef82d84af
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation12.phpt
@@ -0,0 +1,68 @@
+--TEST--
+Test strrpos() function : usage variations - checking binary safe with 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with null terminated strings for 'haystack' argument 
+ *  in order to check the binary safe 
+*/
+
+echo "*** Test strrpos() function: binary safe ***\n";
+$haystacks = array(
+  "Hello".chr(0)."World",
+  chr(0)."Hello World",
+  "Hello World".chr(0),
+  chr(0).chr(0).chr(0),
+  "Hello\0world",
+  "\0Hello",
+  "Hello\0"
+);
+
+for($index = 0; $index < count($haystacks); $index++ ) {
+  var_dump( strrpos($haystacks[$index], "\0") );
+  var_dump( strrpos($haystacks[$index], "\0", $index) );
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Test strrpos() function: binary safe ***
+int(5)
+int(5)
+int(0)
+bool(false)
+int(11)
+int(11)
+int(2)
+bool(false)
+int(5)
+int(5)
+int(0)
+bool(false)
+int(5)
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Test strrpos() function: binary safe ***
+int(5)
+int(5)
+int(0)
+bool(false)
+int(11)
+int(11)
+int(2)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+int(5)
+int(5)
+int(0)
+bool(false)
+int(5)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation13.phpt b/ext/standard/tests/strings/strrpos_variation13.phpt
new file mode 100644
index 00000000000..3e99d1d65df
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation13.phpt
@@ -0,0 +1,70 @@
+--TEST--
+Test strrpos() function : usage variations - checking binary safe with 'needle' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with null terminated strings for 'needle' argument 
+ *  in order to check binary safe 
+*/
+
+echo "*** Test strrpos() function: binary safe ***\n";
+$haystack = "\0Hello\0World\0";
+
+$needles = array(
+  "Hello".chr(0)."World",
+  chr(0)."Hello\0",
+  chr(0),
+  "Hello\0world",
+  "\0Hello\0world\0",
+  "\0Hello",
+  "Hello\0"
+);
+
+for($index = 0; $index < count($needles); $index++ ) {
+  var_dump( strrpos($haystack, $needles[$index]) );
+  var_dump( strrpos($haystack, $needles[$index], $index) );
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Test strrpos() function: binary safe ***
+int(1)
+int(1)
+int(0)
+bool(false)
+int(12)
+int(12)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+int(0)
+bool(false)
+int(1)
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Test strrpos() function: binary safe ***
+int(1)
+int(1)
+int(0)
+bool(false)
+int(12)
+int(12)
+bool(false)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+bool(false)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+int(0)
+bool(false)
+int(1)
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation14.phpt b/ext/standard/tests/strings/strrpos_variation14.phpt
new file mode 100644
index 00000000000..7c1e1e5369c
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation14.phpt
@@ -0,0 +1,224 @@
+--TEST--
+Test strrpos() function : usage variations - unexpected inputs for 'offset' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with unexpected inputs for 'offset' argument */
+
+echo "*** Testing strrpos() function: with unexpected values for offset ***\n";
+
+// get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+// defining a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$file_handle = fopen(__FILE__, "r"); 
+
+//definition of input args
+$haystack = "hello world";
+$needle = "world";
+
+// array with different values
+$offsets =  array (
+
+  // float values
+  1.5,
+  -100.5,
+  1.5e10,
+  1.6E-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
+  @$unset_var
+);
+
+
+// loop through each element of the array and check the working of strrpos()
+$counter = 1;
+for($index = 0; $index < count($offsets); $index ++) {
+  echo "-- Iteration $counter --\n";
+  var_dump( strrpos($haystack, $needle, $offsets[$index]) );
+  $counter ++;
+}
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with unexpected values for offset ***
+-- Iteration 1 --
+int(6)
+-- Iteration 2 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 3 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d%d
+bool(false)
+-- Iteration 4 --
+int(6)
+-- Iteration 5 --
+int(6)
+-- Iteration 6 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 7 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 8 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 9 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 10 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 11 --
+int(6)
+-- Iteration 12 --
+int(6)
+-- Iteration 13 --
+int(6)
+-- Iteration 14 --
+int(6)
+-- Iteration 15 --
+
+Warning: strrpos() expects parameter 3 to be long, object given in %s on line %d%d
+bool(false)
+-- Iteration 16 --
+
+Warning: strrpos() expects parameter 3 to be long, string given in %s on line %d%d
+bool(false)
+-- Iteration 17 --
+
+Warning: strrpos() expects parameter 3 to be long, string given in %s on line %d%d
+bool(false)
+-- Iteration 18 --
+int(6)
+-- Iteration 19 --
+int(6)
+-- Iteration 20 --
+
+Warning: strrpos() expects parameter 3 to be long, resource given in %s on line %d%d
+bool(false)
+-- Iteration 21 --
+int(6)
+-- Iteration 22 --
+int(6)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with unexpected values for offset ***
+-- Iteration 1 --
+int(6)
+-- Iteration 2 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 3 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 4 --
+int(6)
+-- Iteration 5 --
+int(6)
+-- Iteration 6 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 7 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 8 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 9 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 10 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 11 --
+int(6)
+-- Iteration 12 --
+int(6)
+-- Iteration 13 --
+int(6)
+-- Iteration 14 --
+int(6)
+-- Iteration 15 --
+
+Warning: strrpos() expects parameter 3 to be long, object given in %s on line %d
+bool(false)
+-- Iteration 16 --
+
+Warning: strrpos() expects parameter 3 to be long, Unicode string given in %s on line %d
+bool(false)
+-- Iteration 17 --
+
+Warning: strrpos() expects parameter 3 to be long, Unicode string given in %s on line %d
+bool(false)
+-- Iteration 18 --
+int(6)
+-- Iteration 19 --
+int(6)
+-- Iteration 20 --
+
+Warning: strrpos() expects parameter 3 to be long, resource given in %s on line %d
+bool(false)
+-- Iteration 21 --
+int(6)
+-- Iteration 22 --
+int(6)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation15.phpt b/ext/standard/tests/strings/strrpos_variation15.phpt
new file mode 100644
index 00000000000..e07610b84d9
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation15.phpt
@@ -0,0 +1,260 @@
+--TEST--
+Test strrpos() function : usage variations - unexpected inputs for 'haystack', 'needle' & 'offset' arguments
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with unexpected inputs for 'haystack', 'needle' & 'offset' arguments */
+
+echo "*** Testing strrpos() function: with unexpected values for haystack, needle & offset ***\n";
+
+// get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+// defining a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$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
+  @$unset_var
+);
+
+
+// loop through each element of the array and check the working of strrpos()
+$counter = 1;
+for($index = 0; $index < count($values); $index ++) {
+  echo "-- Iteration $counter --\n";
+  var_dump( strrpos($values[$index], $values[$index], $values[$index]) );
+  $counter ++;
+}
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with unexpected values for haystack, needle & offset ***
+-- Iteration 1 --
+bool(false)
+-- Iteration 2 --
+bool(false)
+-- Iteration 3 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d%d
+bool(false)
+-- Iteration 4 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d%d
+bool(false)
+-- Iteration 5 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d%d
+bool(false)
+-- Iteration 6 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d%d
+bool(false)
+-- Iteration 7 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d%d
+bool(false)
+-- Iteration 8 --
+bool(false)
+-- Iteration 9 --
+bool(false)
+-- Iteration 10 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 11 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 12 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 13 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 14 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d%d
+bool(false)
+-- Iteration 15 --
+bool(false)
+-- Iteration 16 --
+bool(false)
+-- Iteration 17 --
+bool(false)
+-- Iteration 18 --
+bool(false)
+-- Iteration 19 --
+
+Warning: strrpos() expects parameter 3 to be long, object given in %s on line %d%d
+bool(false)
+-- Iteration 20 --
+
+Warning: strrpos() expects parameter 3 to be long, string given in %s on line %d%d
+bool(false)
+-- Iteration 21 --
+
+Warning: strrpos() expects parameter 3 to be long, string given in %s on line %d%d
+bool(false)
+-- Iteration 22 --
+bool(false)
+-- Iteration 23 --
+bool(false)
+-- Iteration 24 --
+
+Warning: strrpos() expects parameter 3 to be long, resource given in %s on line %d%d
+bool(false)
+-- Iteration 25 --
+bool(false)
+-- Iteration 26 --
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with unexpected values for haystack, needle & offset ***
+-- Iteration 1 --
+bool(false)
+-- Iteration 2 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 3 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 4 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 5 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 6 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 7 --
+
+Warning: Needle argument codepoint value out of range (0 - 0x10FFFF) in %s on line %d
+bool(false)
+-- Iteration 8 --
+bool(false)
+-- Iteration 9 --
+bool(false)
+-- Iteration 10 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 11 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 12 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 13 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 14 --
+
+Warning: strrpos() expects parameter 3 to be long, array given in %s on line %d
+bool(false)
+-- Iteration 15 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 16 --
+bool(false)
+-- Iteration 17 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 18 --
+bool(false)
+-- Iteration 19 --
+
+Warning: strrpos() expects parameter 3 to be long, object given in %s on line %d
+bool(false)
+-- Iteration 20 --
+
+Warning: strrpos() expects parameter 3 to be long, Unicode string given in %s on line %d
+bool(false)
+-- Iteration 21 --
+
+Warning: strrpos() expects parameter 3 to be long, Unicode string given in %s on line %d
+bool(false)
+-- Iteration 22 --
+bool(false)
+-- Iteration 23 --
+bool(false)
+-- Iteration 24 --
+
+Warning: strrpos() expects parameter 3 to be long, resource given in %s on line %d
+bool(false)
+-- Iteration 25 --
+bool(false)
+-- Iteration 26 --
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation2.phpt b/ext/standard/tests/strings/strrpos_variation2.phpt
new file mode 100644
index 00000000000..db19f8f4d7d
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation2.phpt
@@ -0,0 +1,299 @@
+--TEST--
+Test strrpos() function : usage variations - single quoted strings for 'haystack' & 'needle' arguments
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function by passing single quoted strings to 'haystack' & 'needle' arguments */
+
+echo "*** Testing strrpos() function: with single quoted strings ***\n";
+$haystack = 'Hello,\t\n\0\n  $&!#%()*<=>?@hello123456he \x234 \101 ';
+$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
+  ' ',  
+  '$',
+  ' $',
+  '&',
+  '!#',
+  '()',
+  '<=>',  
+  '>',
+  '=>',
+  '?',
+  '@',
+  '@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 "-- Iteration $count --\n";
+  var_dump( strrpos($haystack, $needle[$index]) );
+  var_dump( strrpos($haystack, $needle[$index], $index) );
+  $count++;
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with single quoted strings ***
+-- Iteration 1 --
+int(32)
+int(32)
+-- Iteration 2 --
+bool(false)
+bool(false)
+-- Iteration 3 --
+bool(false)
+bool(false)
+-- Iteration 4 --
+bool(false)
+bool(false)
+-- Iteration 5 --
+int(6)
+int(6)
+-- Iteration 6 --
+bool(false)
+bool(false)
+-- Iteration 7 --
+bool(false)
+bool(false)
+-- Iteration 8 --
+int(12)
+int(12)
+-- Iteration 9 --
+bool(false)
+bool(false)
+-- Iteration 10 --
+bool(false)
+bool(false)
+-- Iteration 11 --
+int(10)
+int(10)
+-- Iteration 12 --
+bool(false)
+bool(false)
+-- Iteration 13 --
+bool(false)
+bool(false)
+-- Iteration 14 --
+bool(false)
+bool(false)
+-- Iteration 15 --
+bool(false)
+bool(false)
+-- Iteration 16 --
+bool(false)
+bool(false)
+-- Iteration 17 --
+int(53)
+int(53)
+-- Iteration 18 --
+int(16)
+bool(false)
+-- Iteration 19 --
+int(15)
+bool(false)
+-- Iteration 20 --
+int(17)
+bool(false)
+-- Iteration 21 --
+int(18)
+bool(false)
+-- Iteration 22 --
+int(21)
+int(21)
+-- Iteration 23 --
+int(24)
+int(24)
+-- Iteration 24 --
+int(26)
+int(26)
+-- Iteration 25 --
+int(25)
+int(25)
+-- Iteration 26 --
+int(27)
+int(27)
+-- Iteration 27 --
+int(28)
+int(28)
+-- Iteration 28 --
+bool(false)
+bool(false)
+-- Iteration 29 --
+int(34)
+int(34)
+-- Iteration 30 --
+int(43)
+int(43)
+-- Iteration 31 --
+int(19)
+bool(false)
+-- Iteration 32 --
+int(49)
+int(49)
+-- Iteration 33 --
+bool(false)
+bool(false)
+-- Iteration 34 --
+bool(false)
+bool(false)
+-- Iteration 35 --
+int(23)
+bool(false)
+-- Iteration 36 --
+int(0)
+bool(false)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with single quoted strings ***
+-- Iteration 1 --
+int(32)
+int(32)
+-- Iteration 2 --
+bool(false)
+bool(false)
+-- Iteration 3 --
+bool(false)
+bool(false)
+-- Iteration 4 --
+bool(false)
+bool(false)
+-- Iteration 5 --
+int(6)
+int(6)
+-- Iteration 6 --
+bool(false)
+bool(false)
+-- Iteration 7 --
+bool(false)
+bool(false)
+-- Iteration 8 --
+int(12)
+int(12)
+-- Iteration 9 --
+bool(false)
+bool(false)
+-- Iteration 10 --
+bool(false)
+bool(false)
+-- Iteration 11 --
+int(10)
+int(10)
+-- Iteration 12 --
+bool(false)
+bool(false)
+-- Iteration 13 --
+bool(false)
+bool(false)
+-- Iteration 14 --
+bool(false)
+bool(false)
+-- Iteration 15 --
+bool(false)
+bool(false)
+-- Iteration 16 --
+bool(false)
+bool(false)
+-- Iteration 17 --
+int(53)
+int(53)
+-- Iteration 18 --
+int(16)
+bool(false)
+-- Iteration 19 --
+int(15)
+bool(false)
+-- Iteration 20 --
+int(17)
+bool(false)
+-- Iteration 21 --
+int(18)
+bool(false)
+-- Iteration 22 --
+int(21)
+int(21)
+-- Iteration 23 --
+int(24)
+int(24)
+-- Iteration 24 --
+int(26)
+int(26)
+-- Iteration 25 --
+int(25)
+int(25)
+-- Iteration 26 --
+int(27)
+int(27)
+-- Iteration 27 --
+int(28)
+int(28)
+-- Iteration 28 --
+bool(false)
+bool(false)
+-- Iteration 29 --
+int(34)
+int(34)
+-- Iteration 30 --
+int(43)
+int(43)
+-- Iteration 31 --
+int(19)
+bool(false)
+-- Iteration 32 --
+int(49)
+int(49)
+-- Iteration 33 --
+bool(false)
+bool(false)
+-- Iteration 34 --
+bool(false)
+bool(false)
+-- Iteration 35 --
+int(23)
+bool(false)
+-- Iteration 36 --
+int(0)
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation3.phpt b/ext/standard/tests/strings/strrpos_variation3.phpt
new file mode 100644
index 00000000000..99fa30af39a
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation3.phpt
@@ -0,0 +1,46 @@
+--TEST--
+Test strrpos() function : usage variations - multi line heredoc string for 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function by passing multi-line heredoc string for haystack and 
+ *  with various needles & offsets
+*/
+
+echo "*** Testing strrpos() function: with heredoc strings ***\n";
+echo "-- With heredoc string containing multi lines --\n";
+$multi_line_str = <<<EOD
+Example of string
+spanning multiple lines
+using heredoc syntax.
+EOD;
+var_dump( strrpos($multi_line_str, "ing", 0) );
+var_dump( strrpos($multi_line_str, "ing", 15) );
+var_dump( strrpos($multi_line_str, "ing", 22) );
+var_dump( strrpos($multi_line_str, "") );
+var_dump( strrpos($multi_line_str, " ") );
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing multi lines --
+int(44)
+int(44)
+int(44)
+bool(false)
+int(55)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing multi lines --
+int(44)
+int(44)
+int(44)
+bool(false)
+int(55)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation4.phpt b/ext/standard/tests/strings/strrpos_variation4.phpt
new file mode 100644
index 00000000000..3a15a685e54
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation4.phpt
@@ -0,0 +1,52 @@
+--TEST--
+Test strrpos() function : usage variations - heredoc string containing special chars for 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function by passing heredoc string containing special chars for haystack
+ *  and with various needles & offets 
+*/
+
+echo "*** Testing strrpos() function: with heredoc strings ***\n";
+echo "-- With heredoc string containing special chars --\n";
+$special_chars_str = <<<EOD
+Ex'ple of h'doc st'g, contains
+$#%^*&*_("_")!#@@!$#$^^&$*(special)
+chars.
+EOD;
+var_dump( strrpos($special_chars_str, "Ex'ple", 0) );
+var_dump( strrpos($special_chars_str, "!@@!", 23) );
+var_dump( strrpos($special_chars_str, '_') );
+var_dump( strrpos($special_chars_str, '("_")') );
+var_dump( strrpos($special_chars_str, "$*") );
+var_dump( strrpos($special_chars_str, "$*", 10) );
+var_dump( strrpos($special_chars_str, "(special)") );
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing special chars --
+int(0)
+bool(false)
+int(41)
+int(39)
+int(55)
+int(55)
+int(57)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing special chars --
+int(0)
+bool(false)
+int(41)
+int(39)
+int(55)
+int(55)
+int(57)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation5.phpt b/ext/standard/tests/strings/strrpos_variation5.phpt
new file mode 100644
index 00000000000..fd0ed62648b
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation5.phpt
@@ -0,0 +1,42 @@
+--TEST--
+Test strrpos() function : usage variations - heredoc string containing escape chars for 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function by passing heredoc string containing escape chars for haystack 
+ *  and with various needles & offsets 
+*/
+
+echo "*** Testing strrpos() function: with heredoc strings ***\n";
+echo "-- With heredoc string containing escape characters --\n";
+$control_char_str = <<<EOD
+Hello, World\n
+Hello\tWorld
+EOD;
+var_dump( strrpos($control_char_str, "\n") );
+var_dump( strrpos($control_char_str, "\t") );
+var_dump( strrpos($control_char_str, "\n", 12) );
+var_dump( strrpos($control_char_str, "\t", 15) );
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing escape characters --
+int(13)
+int(19)
+int(13)
+int(19)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing escape characters --
+int(13)
+int(19)
+int(13)
+int(19)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation6.phpt b/ext/standard/tests/strings/strrpos_variation6.phpt
new file mode 100644
index 00000000000..039bd9432c0
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation6.phpt
@@ -0,0 +1,43 @@
+--TEST--
+Test strrpos() function : usage variations - heredoc string containing quotes for 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function by passing heredoc string containing quotes for haystack 
+ *  and with various needles & offsets
+*/
+
+echo "*** Testing strrpos() function: with heredoc strings ***\n";
+echo "-- With heredoc string containing quote & slash chars --\n";
+$quote_char_str = <<<EOD
+it's bright,but i cann't see it.
+"things in double quote"
+'things in single quote'
+this\line is /with\slashs
+EOD;
+var_dump( strrpos($quote_char_str, "line") );
+var_dump( strrpos($quote_char_str, 'things') );
+var_dump( strrpos($quote_char_str, 'things', 0) );
+var_dump( strrpos($quote_char_str, "things", 20) );
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing quote & slash chars --
+int(88)
+int(59)
+int(59)
+int(59)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With heredoc string containing quote & slash chars --
+int(88)
+int(59)
+int(59)
+int(59)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation7.phpt b/ext/standard/tests/strings/strrpos_variation7.phpt
new file mode 100644
index 00000000000..239dc246bc8
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation7.phpt
@@ -0,0 +1,32 @@
+--TEST--
+Test strrpos() function : usage variations - empty heredoc string for 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function by passing empty heredoc string for haystack 
+ *  and with various needles & offsets
+*/
+
+echo "*** Testing strrpos() function: with heredoc strings ***\n";
+echo "-- With empty heredoc string --\n";
+$empty_string = <<<EOD
+EOD;
+var_dump( strrpos($empty_string, "") );
+var_dump( strrpos($empty_string, "", 1) );
+var_dump( strrpos($empty_string, FALSE) );
+var_dump( strrpos($empty_string, NULL) );
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: with heredoc strings ***
+-- With empty heredoc string --
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+*** Done ***
\ No newline at end of file
diff --git a/ext/standard/tests/strings/strrpos_variation8.phpt b/ext/standard/tests/strings/strrpos_variation8.phpt
new file mode 100644
index 00000000000..32e5603e40d
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation8.phpt
@@ -0,0 +1,98 @@
+--TEST--
+Test strrpos() function : usage variations - repetitive chars for 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with strings containing multiple occurrences of 'needle' in the 'haystack'
+ *  and with various needles & offsets 
+*/
+
+echo "*** Testing strrpos() function: strings repetitive chars ***\n";
+$haystack = "ababababAbaBa";
+$needle = "aba";
+
+/* loop through to consider various offsets in getting the position of the needle in haystack string */
+$count = 1;
+for($offset = -1; $offset <= strlen($haystack); $offset++ ) {
+  echo "-- Iteration $count --\n";
+  var_dump( strrpos($haystack, $needle, $offset) );
+  $count++;
+}
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function: strings repetitive chars ***
+-- Iteration 1 --
+int(4)
+-- Iteration 2 --
+int(4)
+-- Iteration 3 --
+int(4)
+-- Iteration 4 --
+int(4)
+-- Iteration 5 --
+int(4)
+-- Iteration 6 --
+int(4)
+-- 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)
+*** Done ***
+--UEXPECTF--
+*** Testing strrpos() function: strings repetitive chars ***
+-- Iteration 1 --
+int(4)
+-- Iteration 2 --
+int(4)
+-- Iteration 3 --
+int(4)
+-- Iteration 4 --
+int(4)
+-- Iteration 5 --
+int(4)
+-- Iteration 6 --
+int(4)
+-- 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 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 14 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+-- Iteration 15 --
+
+Notice: strrpos(): Offset is greater than the length of haystack string in %s on line %d
+bool(false)
+*** Done ***
diff --git a/ext/standard/tests/strings/strrpos_variation9.phpt b/ext/standard/tests/strings/strrpos_variation9.phpt
new file mode 100644
index 00000000000..ea737977790
--- /dev/null
+++ b/ext/standard/tests/strings/strrpos_variation9.phpt
@@ -0,0 +1,273 @@
+--TEST--
+Test strrpos() function : usage variations - unexpected inputs for 'haystack' argument
+--FILE--
+<?php
+/* Prototype  : int strrpos ( string $haystack, string $needle [, int $offset] );
+ * Description: Find position of last occurrence of 'needle' in 'haystack'.
+ * Source code: ext/standard/string.c
+*/
+
+/* Test strrpos() function with unexpected inputs for haystack argument */
+
+echo "*** Testing strrpos() function with unexpected values for haystack ***\n";
+
+// get an unset variable
+$unset_var = 'string_val';
+unset($unset_var);
+
+// defining a class
+class sample  {
+  public function __toString() {
+    return "object";
+  } 
+}
+
+//getting the resource
+$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,
+
+  // objects
+  new sample(),
+
+  // empty string
+  "",
+  '',
+
+  // null vlaues
+  NULL,
+  null,
+
+  // resource
+  $file_handle,
+
+  // undefined variable
+  @$undefined_var,
+
+  // unset variable
+  @$unset_var
+);
+
+$needle = "heredoc 0 1 2 -2 10.5 -10.5 10.5e10 10.6E-10 .5 array true false object \"\" null Resource";
+
+// loop through each element of the array and check the working of strrpos()
+$counter = 1;
+for($index = 0; $index < count($haystacks); $index ++) {
+  echo "\n-- Iteration $counter --\n";
+  var_dump( strrpos($haystacks[$index], $needle) );
+  $counter ++;
+}
+
+fclose($file_handle);  //closing the file handle
+
+echo "*** Done ***";
+?>
+--EXPECTF--
+*** Testing strrpos() function with unexpected values for haystack ***
+
+-- 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 --
+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 ***
+--UEXPECTF--
+*** Testing strrpos() function with unexpected values for haystack ***
+
+-- 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 --
+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 ***