From fa61cf8a316265af15cb937d15ef0fbd9f49e818 Mon Sep 17 00:00:00 2001
From: Raghubansh Kumar <kraghuba@php.net>
Date: Sat, 29 Sep 2007 12:57:06 +0000
Subject: [PATCH] New testcases for chunk_split() function

---
 .../tests/strings/chunk_split_basic.phpt      |  67 +++++
 .../tests/strings/chunk_split_error.phpt      |  49 ++++
 .../tests/strings/chunk_split_variation1.phpt | 241 +++++++++++++++
 .../strings/chunk_split_variation10.phpt      | 119 ++++++++
 .../strings/chunk_split_variation11.phpt      | 145 +++++++++
 .../strings/chunk_split_variation12.phpt      | 206 +++++++++++++
 .../strings/chunk_split_variation13.phpt      |  55 ++++
 .../tests/strings/chunk_split_variation2.phpt | 274 ++++++++++++++++++
 .../tests/strings/chunk_split_variation3.phpt | 228 +++++++++++++++
 .../tests/strings/chunk_split_variation4.phpt | 268 +++++++++++++++++
 .../tests/strings/chunk_split_variation5.phpt | Bin 0 -> 3266 bytes
 .../tests/strings/chunk_split_variation6.phpt | 105 +++++++
 .../tests/strings/chunk_split_variation7.phpt | Bin 0 -> 3446 bytes
 .../tests/strings/chunk_split_variation8.phpt | 128 ++++++++
 .../tests/strings/chunk_split_variation9.phpt | Bin 0 -> 5440 bytes
 15 files changed, 1885 insertions(+)
 create mode 100644 ext/standard/tests/strings/chunk_split_basic.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_error.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation1.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation10.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation11.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation12.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation13.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation2.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation3.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation4.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation5.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation6.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation7.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation8.phpt
 create mode 100644 ext/standard/tests/strings/chunk_split_variation9.phpt

diff --git a/ext/standard/tests/strings/chunk_split_basic.phpt b/ext/standard/tests/strings/chunk_split_basic.phpt
new file mode 100644
index 0000000000..e5cf2fad72
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_basic.phpt
@@ -0,0 +1,67 @@
+--TEST--
+Test chunk_split() function : basic functionality 
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line 
+ * Source code: ext/standard/string.c
+ * Alias to functions: 
+*/
+
+/*
+* Testing chunk_split() for basic functionality by passing all possible 
+* arguments as well as with default arguments chunklen and ending  
+*/
+
+echo "*** Testing chunk_split() : basic functionality ***\n";
+
+// Initialise all required variables
+$str = 'Testing';
+$chunklen = 2;
+$ending = '##';
+
+// Calling chunk_split() with all possible arguments
+echo "-- Testing chunk_split() with all possible arguments --\n"; 
+var_dump( chunk_split($str, $chunklen, $ending) );
+
+
+// Calling chunk_split() with default ending string
+echo "-- Testing chunk_split() with default ending string --\n";
+var_dump( chunk_split($str, $chunklen) );
+
+
+//Calling chunk_split() with default chunklen and ending string
+echo "-- Testing chunk_split() with default chunklen and ending string --\n";
+var_dump( chunk_split($str) );
+	
+echo "Done"   
+?>
+--EXPECTF--
+*** Testing chunk_split() : basic functionality ***
+-- Testing chunk_split() with all possible arguments --
+string(15) "Te##st##in##g##"
+-- Testing chunk_split() with default ending string --
+string(15) "Te
+st
+in
+g
+"
+-- Testing chunk_split() with default chunklen and ending string --
+string(9) "Testing
+"
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : basic functionality ***
+-- Testing chunk_split() with all possible arguments --
+unicode(15) "Te##st##in##g##"
+-- Testing chunk_split() with default ending string --
+unicode(15) "Te
+st
+in
+g
+"
+-- Testing chunk_split() with default chunklen and ending string --
+unicode(9) "Testing
+"
+Done
diff --git a/ext/standard/tests/strings/chunk_split_error.phpt b/ext/standard/tests/strings/chunk_split_error.phpt
new file mode 100644
index 0000000000..9a0819c732
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_error.phpt
@@ -0,0 +1,49 @@
+--TEST--
+Test chunk_split() function : error conditions 
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: none
+*/
+
+/*
+* Testing error conditions of chunk_split() with zero arguments 
+* and for more than expected number of argments 
+*/
+
+echo "*** Testing chunk_split() : error conditions ***\n";
+
+// Zero arguments
+echo "-- Testing chunk_split() function with Zero arguments --";
+var_dump( chunk_split() );
+
+//Test chunk_split with one more than the expected number of arguments
+$str = 'Testing chunk_split';
+$chunklen = 5;
+$ending = '***';
+$extra_arg = 10;
+echo "-- Testing chunk_split() function with more than expected no. of arguments --";
+var_dump( chunk_split($str, $chunklen, $ending, $extra_arg) );
+
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : error conditions ***
+-- Testing chunk_split() function with Zero arguments --
+Warning: chunk_split() expects at least 1 parameter, 0 given in %s on line %d
+NULL
+-- Testing chunk_split() function with more than expected no. of arguments --
+Warning: chunk_split() expects at most 3 parameters, 4 given in %s on line %d
+NULL
+Done
+--UEXPECTF--
+*** Testing chunk_split() : error conditions ***
+-- Testing chunk_split() function with Zero arguments --
+Warning: chunk_split() expects at least 1 parameter, 0 given in %s on line %d
+NULL
+-- Testing chunk_split() function with more than expected no. of arguments --
+Warning: chunk_split() expects at most 3 parameters, 4 given in %s on line %d
+NULL
+Done
diff --git a/ext/standard/tests/strings/chunk_split_variation1.phpt b/ext/standard/tests/strings/chunk_split_variation1.phpt
new file mode 100644
index 0000000000..95d3720a78
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation1.phpt
@@ -0,0 +1,241 @@
+--TEST--
+Test chunk_split() function : usage variations - with unexpected values for 'str' argument
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line %d%d%d%d
+ * Source code: ext/standard/string.c
+ * Alias to functions: none
+*/
+
+echo "*** Testing chunk_split() : with unexpected values for 'str' argument ***\n";
+
+// Initialising variables
+$chunklen = 2;
+$ending = ' ';
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+//class for object variable
+class MyClass
+{
+  public function __toString()
+  {
+    return "object";
+  }
+}
+
+//resource  variable
+$fp = fopen(__FILE__, 'r');
+
+//different values for 'str'
+$values = array(
+
+      // int data
+      0,
+      1,
+      12345,
+      -2345,
+
+      // float data
+      10.5,
+      -10.5,
+      10.5e10,
+      10.6E-10,
+      .5,
+
+      // array data
+      array(),
+      array(0),
+      array(1),
+      array(1, 2),
+      array('color' => 'red', 'item' => 'pen'),
+
+      // null data
+      NULL,
+      null,
+
+      // boolean data
+      true,
+      false,
+      TRUE,
+      FALSE,
+
+      // empty data
+      "",
+      '',
+
+      // string data
+      "string",
+      'string',
+
+      // object data
+      new MyClass(),
+
+      // undefined data
+      @$undefined_var,
+
+      // unset data
+      @$unset_var,
+
+      // resource data
+      $fp	
+);
+
+// loop through each element of the array for str
+for($count = 0; $count < count($values); $count++) {
+  echo "-- Iteration ".($count+1)." --\n";
+  var_dump( chunk_split($values[$count], $chunklen, $ending) );
+};
+
+echo "Done";
+
+// close the resource
+fclose($fp);
+
+?>
+--EXPECTF--
+*** Testing chunk_split() : with unexpected values for 'str' argument ***
+-- Iteration 1 --
+string(2) "0 "
+-- Iteration 2 --
+string(2) "1 "
+-- Iteration 3 --
+string(8) "12 34 5 "
+-- Iteration 4 --
+string(8) "-2 34 5 "
+-- Iteration 5 --
+string(6) "10 .5 "
+-- Iteration 6 --
+string(8) "-1 0. 5 "
+-- Iteration 7 --
+string(18) "10 50 00 00 00 00 "
+-- Iteration 8 --
+string(11) "1. 06 E- 9 "
+-- Iteration 9 --
+string(5) "0. 5 "
+-- Iteration 10 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 11 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 12 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 13 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 14 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 15 --
+string(1) " "
+-- Iteration 16 --
+string(1) " "
+-- Iteration 17 --
+string(2) "1 "
+-- Iteration 18 --
+string(1) " "
+-- Iteration 19 --
+string(2) "1 "
+-- Iteration 20 --
+string(1) " "
+-- Iteration 21 --
+string(1) " "
+-- Iteration 22 --
+string(1) " "
+-- Iteration 23 --
+string(9) "st ri ng "
+-- Iteration 24 --
+string(9) "st ri ng "
+-- Iteration 25 --
+string(9) "ob je ct "
+-- Iteration 26 --
+string(1) " "
+-- Iteration 27 --
+string(1) " "
+-- Iteration 28 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), resource given in %s on line %d%d
+NULL
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : with unexpected values for 'str' argument ***
+-- Iteration 1 --
+unicode(2) "0 "
+-- Iteration 2 --
+unicode(2) "1 "
+-- Iteration 3 --
+unicode(8) "12 34 5 "
+-- Iteration 4 --
+unicode(8) "-2 34 5 "
+-- Iteration 5 --
+unicode(6) "10 .5 "
+-- Iteration 6 --
+unicode(8) "-1 0. 5 "
+-- Iteration 7 --
+unicode(18) "10 50 00 00 00 00 "
+-- Iteration 8 --
+unicode(11) "1. 06 E- 9 "
+-- Iteration 9 --
+unicode(5) "0. 5 "
+-- Iteration 10 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 11 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 12 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 13 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 14 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 15 --
+unicode(1) " "
+-- Iteration 16 --
+unicode(1) " "
+-- Iteration 17 --
+unicode(2) "1 "
+-- Iteration 18 --
+unicode(1) " "
+-- Iteration 19 --
+unicode(2) "1 "
+-- Iteration 20 --
+unicode(1) " "
+-- Iteration 21 --
+unicode(1) " "
+-- Iteration 22 --
+unicode(1) " "
+-- Iteration 23 --
+unicode(9) "st ri ng "
+-- Iteration 24 --
+unicode(9) "st ri ng "
+-- Iteration 25 --
+unicode(9) "ob je ct "
+-- Iteration 26 --
+unicode(1) " "
+-- Iteration 27 --
+unicode(1) " "
+-- Iteration 28 --
+
+Warning: chunk_split() expects parameter 1 to be string (Unicode or binary), resource given in %s on line %d
+NULL
+Done
diff --git a/ext/standard/tests/strings/chunk_split_variation10.phpt b/ext/standard/tests/strings/chunk_split_variation10.phpt
new file mode 100644
index 0000000000..805bba5ae9
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation10.phpt
@@ -0,0 +1,119 @@
+--TEST--
+Test chunk_split() function : usage variations - different single quoted strings for 'ending' argument
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: none
+*/
+
+/*
+* passing different single quoted strings for 'ending' arguments to chunk_split()
+*/
+
+echo "*** Testing chunk_split() : different single quoted strings as 'ending' ***\n";
+
+
+//Initializing variables
+$str = "This is to test chunk_split() with various 'single quoted' ending string.";
+$chunklen = 9.2;
+
+//different values for 'ending' argument
+$values = array (
+  '',  //empty
+  ' ',  //space
+  'a',  //Single char
+  'ENDING',  //String
+  '@#$%^',  //Special chars
+
+  
+  '\t',  
+  '\n',
+  '\r',
+  '\r\n',
+  
+  '\0',  //Null char
+  '123',  //Numeric
+  '(MSG)',  //With ( and )
+  ') ending string (',  //sentence as ending string
+  ') numbers 1234 (',  //string with numbers
+  ') speci@! ch@r$ ('  //string with special chars
+);
+
+
+//loop through each element of values for 'ending'
+for($count = 0; $count < count($values); $count++) {
+  echo "-- Iteration $count --\n";
+  var_dump( chunk_split($str, $chunklen, $values[$count]) );
+}
+
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : different single quoted strings as 'ending' ***
+-- Iteration 0 --
+string(73) "This is to test chunk_split() with various 'single quoted' ending string."
+-- Iteration 1 --
+string(82) "This is t o test ch unk_split () with v arious 's ingle quo ted' endi ng string . "
+-- Iteration 2 --
+string(82) "This is tao test chaunk_splita() with vaarious 'saingle quoated' endiang stringa.a"
+-- Iteration 3 --
+string(127) "This is tENDINGo test chENDINGunk_splitENDING() with vENDINGarious 'sENDINGingle quoENDINGted' endiENDINGng stringENDING.ENDING"
+-- Iteration 4 --
+string(118) "This is t@#$%^o test ch@#$%^unk_split@#$%^() with v@#$%^arious 's@#$%^ingle quo@#$%^ted' endi@#$%^ng string@#$%^.@#$%^"
+-- Iteration 5 --
+string(91) "This is t\to test ch\tunk_split\t() with v\tarious 's\tingle quo\tted' endi\tng string\t.\t"
+-- Iteration 6 --
+string(91) "This is t\no test ch\nunk_split\n() with v\narious 's\ningle quo\nted' endi\nng string\n.\n"
+-- Iteration 7 --
+string(91) "This is t\ro test ch\runk_split\r() with v\rarious 's\ringle quo\rted' endi\rng string\r.\r"
+-- Iteration 8 --
+string(109) "This is t\r\no test ch\r\nunk_split\r\n() with v\r\narious 's\r\ningle quo\r\nted' endi\r\nng string\r\n.\r\n"
+-- Iteration 9 --
+string(91) "This is t\0o test ch\0unk_split\0() with v\0arious 's\0ingle quo\0ted' endi\0ng string\0.\0"
+-- Iteration 10 --
+string(100) "This is t123o test ch123unk_split123() with v123arious 's123ingle quo123ted' endi123ng string123.123"
+-- Iteration 11 --
+string(118) "This is t(MSG)o test ch(MSG)unk_split(MSG)() with v(MSG)arious 's(MSG)ingle quo(MSG)ted' endi(MSG)ng string(MSG).(MSG)"
+-- Iteration 12 --
+string(226) "This is t) ending string (o test ch) ending string (unk_split) ending string (() with v) ending string (arious 's) ending string (ingle quo) ending string (ted' endi) ending string (ng string) ending string (.) ending string ("
+-- Iteration 13 --
+string(217) "This is t) numbers 1234 (o test ch) numbers 1234 (unk_split) numbers 1234 (() with v) numbers 1234 (arious 's) numbers 1234 (ingle quo) numbers 1234 (ted' endi) numbers 1234 (ng string) numbers 1234 (.) numbers 1234 ("
+-- Iteration 14 --
+string(226) "This is t) speci@! ch@r$ (o test ch) speci@! ch@r$ (unk_split) speci@! ch@r$ (() with v) speci@! ch@r$ (arious 's) speci@! ch@r$ (ingle quo) speci@! ch@r$ (ted' endi) speci@! ch@r$ (ng string) speci@! ch@r$ (.) speci@! ch@r$ ("
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : different single quoted strings as 'ending' ***
+-- Iteration 0 --
+unicode(73) "This is to test chunk_split() with various 'single quoted' ending string."
+-- Iteration 1 --
+unicode(82) "This is t o test ch unk_split () with v arious 's ingle quo ted' endi ng string . "
+-- Iteration 2 --
+unicode(82) "This is tao test chaunk_splita() with vaarious 'saingle quoated' endiang stringa.a"
+-- Iteration 3 --
+unicode(127) "This is tENDINGo test chENDINGunk_splitENDING() with vENDINGarious 'sENDINGingle quoENDINGted' endiENDINGng stringENDING.ENDING"
+-- Iteration 4 --
+unicode(118) "This is t@#$%^o test ch@#$%^unk_split@#$%^() with v@#$%^arious 's@#$%^ingle quo@#$%^ted' endi@#$%^ng string@#$%^.@#$%^"
+-- Iteration 5 --
+unicode(91) "This is t\to test ch\tunk_split\t() with v\tarious 's\tingle quo\tted' endi\tng string\t.\t"
+-- Iteration 6 --
+unicode(91) "This is t\no test ch\nunk_split\n() with v\narious 's\ningle quo\nted' endi\nng string\n.\n"
+-- Iteration 7 --
+unicode(91) "This is t\ro test ch\runk_split\r() with v\rarious 's\ringle quo\rted' endi\rng string\r.\r"
+-- Iteration 8 --
+unicode(109) "This is t\r\no test ch\r\nunk_split\r\n() with v\r\narious 's\r\ningle quo\r\nted' endi\r\nng string\r\n.\r\n"
+-- Iteration 9 --
+unicode(91) "This is t\0o test ch\0unk_split\0() with v\0arious 's\0ingle quo\0ted' endi\0ng string\0.\0"
+-- Iteration 10 --
+unicode(100) "This is t123o test ch123unk_split123() with v123arious 's123ingle quo123ted' endi123ng string123.123"
+-- Iteration 11 --
+unicode(118) "This is t(MSG)o test ch(MSG)unk_split(MSG)() with v(MSG)arious 's(MSG)ingle quo(MSG)ted' endi(MSG)ng string(MSG).(MSG)"
+-- Iteration 12 --
+unicode(226) "This is t) ending string (o test ch) ending string (unk_split) ending string (() with v) ending string (arious 's) ending string (ingle quo) ending string (ted' endi) ending string (ng string) ending string (.) ending string ("
+-- Iteration 13 --
+unicode(217) "This is t) numbers 1234 (o test ch) numbers 1234 (unk_split) numbers 1234 (() with v) numbers 1234 (arious 's) numbers 1234 (ingle quo) numbers 1234 (ted' endi) numbers 1234 (ng string) numbers 1234 (.) numbers 1234 ("
+-- Iteration 14 --
+unicode(226) "This is t) speci@! ch@r$ (o test ch) speci@! ch@r$ (unk_split) speci@! ch@r$ (() with v) speci@! ch@r$ (arious 's) speci@! ch@r$ (ingle quo) speci@! ch@r$ (ted' endi) speci@! ch@r$ (ng string) speci@! ch@r$ (.) speci@! ch@r$ ("
+Done
\ No newline at end of file
diff --git a/ext/standard/tests/strings/chunk_split_variation11.phpt b/ext/standard/tests/strings/chunk_split_variation11.phpt
new file mode 100644
index 0000000000..4725461098
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation11.phpt
@@ -0,0 +1,145 @@
+--TEST--
+Test chunk_split() function : usage variations - different strings for 'ending' with heredoc 'str'
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: none 
+*/
+
+/*
+* passing different strings for 'ending' and heredoc string as 'str' to chunk_split()
+*/
+
+echo "*** Testing chunk_split() : different values for 'ending' with heredoc 'str'***\n";
+
+// Initializing required variables
+// heredoc string for 'str' argument
+$heredoc_str = <<<EOT
+This is heredoc string with \t and \n.It also contains
+sPeci@! ch@r$ :) & numbers 222.This is \k wrong escape char.
+EOT;
+
+$chunklen = 6E+0;
+
+//different values for 'ending'
+$values = array (
+  "",  //empty 
+  " ",  //space
+  "a",  //single char
+  "ENDING",  //regular string
+  "\r\n",  //White space char
+  "123",  //Numeric
+  ")speci@! ch@r$(",  //String with special chars
+);
+
+//loop through each values for 'ending'
+for($count = 0; $count < count($values); $count++) {
+  echo "-- Iteration ".($count+1). " --\n";
+  var_dump( chunk_split($heredoc_str, $chunklen, $values[$count]) );
+}
+
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : different values for 'ending' with heredoc 'str'***
+-- Iteration 1 --
+string(113) "This is heredoc string with 	 and 
+.It also contains
+sPeci@! ch@r$ :) & numbers 222.This is \k wrong escape char."
+-- Iteration 2 --
+string(132) "This i s here doc st ring w ith 	  and 
+. It als o cont ains
+s Peci@!  ch@r$  :) &  number s 222. This i s \k w rong e scape  char. "
+-- Iteration 3 --
+string(132) "This ias hereadoc staring waith 	 aand 
+.aIt alsao contaains
+saPeci@!a ch@r$a :) & anumberas 222.aThis ias \k warong eascape achar.a"
+-- Iteration 4 --
+string(227) "This iENDINGs hereENDINGdoc stENDINGring wENDINGith 	 ENDINGand 
+.ENDINGIt alsENDINGo contENDINGains
+sENDINGPeci@!ENDING ch@r$ENDING :) & ENDINGnumberENDINGs 222.ENDINGThis iENDINGs \k wENDINGrong eENDINGscape ENDINGchar.ENDING"
+-- Iteration 5 --
+string(151) "This i
+s here
+doc st
+ring w
+ith 	 
+and 
+.
+It als
+o cont
+ains
+s
+Peci@!
+ ch@r$
+ :) & 
+number
+s 222.
+This i
+s \k w
+rong e
+scape 
+char.
+"
+-- Iteration 6 --
+string(170) "This i123s here123doc st123ring w123ith 	 123and 
+.123It als123o cont123ains
+s123Peci@!123 ch@r$123 :) & 123number123s 222.123This i123s \k w123rong e123scape 123char.123"
+-- Iteration 7 --
+string(398) "This i)speci@! ch@r$(s here)speci@! ch@r$(doc st)speci@! ch@r$(ring w)speci@! ch@r$(ith 	 )speci@! ch@r$(and 
+.)speci@! ch@r$(It als)speci@! ch@r$(o cont)speci@! ch@r$(ains
+s)speci@! ch@r$(Peci@!)speci@! ch@r$( ch@r$)speci@! ch@r$( :) & )speci@! ch@r$(number)speci@! ch@r$(s 222.)speci@! ch@r$(This i)speci@! ch@r$(s \k w)speci@! ch@r$(rong e)speci@! ch@r$(scape )speci@! ch@r$(char.)speci@! ch@r$("
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : different values for 'ending' with heredoc 'str'***
+-- Iteration 1 --
+unicode(113) "This is heredoc string with 	 and 
+.It also contains
+sPeci@! ch@r$ :) & numbers 222.This is \k wrong escape char."
+-- Iteration 2 --
+unicode(132) "This i s here doc st ring w ith 	  and 
+. It als o cont ains
+s Peci@!  ch@r$  :) &  number s 222. This i s \k w rong e scape  char. "
+-- Iteration 3 --
+unicode(132) "This ias hereadoc staring waith 	 aand 
+.aIt alsao contaains
+saPeci@!a ch@r$a :) & anumberas 222.aThis ias \k warong eascape achar.a"
+-- Iteration 4 --
+unicode(227) "This iENDINGs hereENDINGdoc stENDINGring wENDINGith 	 ENDINGand 
+.ENDINGIt alsENDINGo contENDINGains
+sENDINGPeci@!ENDING ch@r$ENDING :) & ENDINGnumberENDINGs 222.ENDINGThis iENDINGs \k wENDINGrong eENDINGscape ENDINGchar.ENDING"
+-- Iteration 5 --
+unicode(151) "This i
+s here
+doc st
+ring w
+ith 	 
+and 
+.
+It als
+o cont
+ains
+s
+Peci@!
+ ch@r$
+ :) & 
+number
+s 222.
+This i
+s \k w
+rong e
+scape 
+char.
+"
+-- Iteration 6 --
+unicode(170) "This i123s here123doc st123ring w123ith 	 123and 
+.123It als123o cont123ains
+s123Peci@!123 ch@r$123 :) & 123number123s 222.123This i123s \k w123rong e123scape 123char.123"
+-- Iteration 7 --
+unicode(398) "This i)speci@! ch@r$(s here)speci@! ch@r$(doc st)speci@! ch@r$(ring w)speci@! ch@r$(ith 	 )speci@! ch@r$(and 
+.)speci@! ch@r$(It als)speci@! ch@r$(o cont)speci@! ch@r$(ains
+s)speci@! ch@r$(Peci@!)speci@! ch@r$( ch@r$)speci@! ch@r$( :) & )speci@! ch@r$(number)speci@! ch@r$(s 222.)speci@! ch@r$(This i)speci@! ch@r$(s \k w)speci@! ch@r$(rong e)speci@! ch@r$(scape )speci@! ch@r$(char.)speci@! ch@r$("
+Done
diff --git a/ext/standard/tests/strings/chunk_split_variation12.phpt b/ext/standard/tests/strings/chunk_split_variation12.phpt
new file mode 100644
index 0000000000..b440f56cd3
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation12.phpt
@@ -0,0 +1,206 @@
+--TEST--
+Test chunk_split() function : usage variations - different heredoc strings for 'ending' argument 
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: none
+*/
+
+/*
+* passing different heredoc strings as 'ending' argument to chunk_split() 
+* 'chunklen' argument is set to 10
+*/
+
+echo "*** Testing chunk_split() : different heredoc strings for 'ending' argument ***\n";
+
+// Initializing required variables
+$chunklen = 10;
+$str = "This is str to check with heredoc ending.This\tcontains,\nspeci@! ch@r$ __with wrong \k escape char 222.";
+
+// Null heredoc string
+$heredoc_null = <<<EOT1
+EOT1;
+
+// heredoc string with single character
+$heredoc_char = <<<EOT2
+a
+EOT2;
+
+// simple heredoc string
+$heredoc_str = <<<EOT3
+This is simple heredoc string
+EOT3;
+
+// heredoc with special characters
+$heredoc_spchar = <<<EOT4
+This checks with $, %, &, chars
+EOT4;
+
+// blank heredoc string
+$heredoc_blank = <<<EOT5
+
+EOT5;
+
+// heredoc with different white space characters
+$heredoc_escchar = <<<EOT6
+This checks\t and \nwhite space chars
+EOT6;
+
+// heredoc with multiline
+$heredoc_multiline= <<<EOT7
+This is to check chunk_split
+function with multiline
+heredoc
+EOT7;
+
+// heredoc with quotes and slashes
+$heredoc_quote_slash = <<<EOT8
+"To check " in heredoc".I'm sure it'll \work!
+EOT8;
+
+// different heredoc strings for 'ending'
+$heredoc_arr = array(
+  $heredoc_null,
+  $heredoc_blank,
+  $heredoc_char,
+  $heredoc_str,
+  $heredoc_multiline,
+  $heredoc_spchar,
+  $heredoc_escchar,
+  $heredoc_quote_slash
+);
+
+
+// loop through each element of the heredoc_arr for str
+$count = 0;
+foreach($heredoc_arr as $value) {
+  echo "-- Iteration ".($count+1). " --\n";
+  var_dump( chunk_split( $str, $chunklen, $value) );
+  $count++;
+};
+ 
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : different heredoc strings for 'ending' argument ***
+-- Iteration 1 --
+string(102) "This is str to check with heredoc ending.This	contains,
+speci@! ch@r$ __with wrong \k escape char 222."
+-- Iteration 2 --
+string(102) "This is str to check with heredoc ending.This	contains,
+speci@! ch@r$ __with wrong \k escape char 222."
+-- Iteration 3 --
+string(113) "This is star to checka with hereadoc endinga.This	contaains,
+specai@! ch@r$ a__with wroang \k escaape char 22a2.a"
+-- Iteration 4 --
+string(421) "This is stThis is simple heredoc stringr to checkThis is simple heredoc string with hereThis is simple heredoc stringdoc endingThis is simple heredoc string.This	contThis is simple heredoc stringains,
+specThis is simple heredoc stringi@! ch@r$ This is simple heredoc string__with wroThis is simple heredoc stringng \k escaThis is simple heredoc stringpe char 22This is simple heredoc string2.This is simple heredoc string"
+-- Iteration 5 --
+string(762) "This is stThis is to check chunk_split
+function with multiline
+heredocr to checkThis is to check chunk_split
+function with multiline
+heredoc with hereThis is to check chunk_split
+function with multiline
+heredocdoc endingThis is to check chunk_split
+function with multiline
+heredoc.This	contThis is to check chunk_split
+function with multiline
+heredocains,
+specThis is to check chunk_split
+function with multiline
+heredoci@! ch@r$ This is to check chunk_split
+function with multiline
+heredoc__with wroThis is to check chunk_split
+function with multiline
+heredocng \k escaThis is to check chunk_split
+function with multiline
+heredocpe char 22This is to check chunk_split
+function with multiline
+heredoc2.This is to check chunk_split
+function with multiline
+heredoc"
+-- Iteration 6 --
+string(443) "This is stThis checks with $, %, &, charsr to checkThis checks with $, %, &, chars with hereThis checks with $, %, &, charsdoc endingThis checks with $, %, &, chars.This	contThis checks with $, %, &, charsains,
+specThis checks with $, %, &, charsi@! ch@r$ This checks with $, %, &, chars__with wroThis checks with $, %, &, charsng \k escaThis checks with $, %, &, charspe char 22This checks with $, %, &, chars2.This checks with $, %, &, chars"
+-- Iteration 7 --
+string(487) "This is stThis checks	 and 
+white space charsr to checkThis checks	 and 
+white space chars with hereThis checks	 and 
+white space charsdoc endingThis checks	 and 
+white space chars.This	contThis checks	 and 
+white space charsains,
+specThis checks	 and 
+white space charsi@! ch@r$ This checks	 and 
+white space chars__with wroThis checks	 and 
+white space charsng \k escaThis checks	 and 
+white space charspe char 22This checks	 and 
+white space chars2.This checks	 and 
+white space chars"
+-- Iteration 8 --
+string(597) "This is st"To check " in heredoc".I'm sure it'll \work!r to check"To check " in heredoc".I'm sure it'll \work! with here"To check " in heredoc".I'm sure it'll \work!doc ending"To check " in heredoc".I'm sure it'll \work!.This	cont"To check " in heredoc".I'm sure it'll \work!ains,
+spec"To check " in heredoc".I'm sure it'll \work!i@! ch@r$ "To check " in heredoc".I'm sure it'll \work!__with wro"To check " in heredoc".I'm sure it'll \work!ng \k esca"To check " in heredoc".I'm sure it'll \work!pe char 22"To check " in heredoc".I'm sure it'll \work!2."To check " in heredoc".I'm sure it'll \work!"
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : different heredoc strings for 'ending' argument ***
+-- Iteration 1 --
+unicode(102) "This is str to check with heredoc ending.This	contains,
+speci@! ch@r$ __with wrong \k escape char 222."
+-- Iteration 2 --
+unicode(102) "This is str to check with heredoc ending.This	contains,
+speci@! ch@r$ __with wrong \k escape char 222."
+-- Iteration 3 --
+unicode(113) "This is star to checka with hereadoc endinga.This	contaains,
+specai@! ch@r$ a__with wroang \k escaape char 22a2.a"
+-- Iteration 4 --
+unicode(421) "This is stThis is simple heredoc stringr to checkThis is simple heredoc string with hereThis is simple heredoc stringdoc endingThis is simple heredoc string.This	contThis is simple heredoc stringains,
+specThis is simple heredoc stringi@! ch@r$ This is simple heredoc string__with wroThis is simple heredoc stringng \k escaThis is simple heredoc stringpe char 22This is simple heredoc string2.This is simple heredoc string"
+-- Iteration 5 --
+unicode(762) "This is stThis is to check chunk_split
+function with multiline
+heredocr to checkThis is to check chunk_split
+function with multiline
+heredoc with hereThis is to check chunk_split
+function with multiline
+heredocdoc endingThis is to check chunk_split
+function with multiline
+heredoc.This	contThis is to check chunk_split
+function with multiline
+heredocains,
+specThis is to check chunk_split
+function with multiline
+heredoci@! ch@r$ This is to check chunk_split
+function with multiline
+heredoc__with wroThis is to check chunk_split
+function with multiline
+heredocng \k escaThis is to check chunk_split
+function with multiline
+heredocpe char 22This is to check chunk_split
+function with multiline
+heredoc2.This is to check chunk_split
+function with multiline
+heredoc"
+-- Iteration 6 --
+unicode(443) "This is stThis checks with $, %, &, charsr to checkThis checks with $, %, &, chars with hereThis checks with $, %, &, charsdoc endingThis checks with $, %, &, chars.This	contThis checks with $, %, &, charsains,
+specThis checks with $, %, &, charsi@! ch@r$ This checks with $, %, &, chars__with wroThis checks with $, %, &, charsng \k escaThis checks with $, %, &, charspe char 22This checks with $, %, &, chars2.This checks with $, %, &, chars"
+-- Iteration 7 --
+unicode(487) "This is stThis checks	 and 
+white space charsr to checkThis checks	 and 
+white space chars with hereThis checks	 and 
+white space charsdoc endingThis checks	 and 
+white space chars.This	contThis checks	 and 
+white space charsains,
+specThis checks	 and 
+white space charsi@! ch@r$ This checks	 and 
+white space chars__with wroThis checks	 and 
+white space charsng \k escaThis checks	 and 
+white space charspe char 22This checks	 and 
+white space chars2.This checks	 and 
+white space chars"
+-- Iteration 8 --
+unicode(597) "This is st"To check " in heredoc".I'm sure it'll \work!r to check"To check " in heredoc".I'm sure it'll \work! with here"To check " in heredoc".I'm sure it'll \work!doc ending"To check " in heredoc".I'm sure it'll \work!.This	cont"To check " in heredoc".I'm sure it'll \work!ains,
+spec"To check " in heredoc".I'm sure it'll \work!i@! ch@r$ "To check " in heredoc".I'm sure it'll \work!__with wro"To check " in heredoc".I'm sure it'll \work!ng \k esca"To check " in heredoc".I'm sure it'll \work!pe char 22"To check " in heredoc".I'm sure it'll \work!2."To check " in heredoc".I'm sure it'll \work!"
+Done
\ No newline at end of file
diff --git a/ext/standard/tests/strings/chunk_split_variation13.phpt b/ext/standard/tests/strings/chunk_split_variation13.phpt
new file mode 100644
index 0000000000..f019f0d271
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation13.phpt
@@ -0,0 +1,55 @@
+--TEST--
+Test chunk_split() function : usage variations - default 'chunklen' with long string as 'str'
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: 
+*/
+
+/*
+* passing long string as 'str' and testing for default value of chunklen which is 76
+*/
+
+echo "*** Testing chunk_split() : default 'chunklen' with long string 'str' ***\n";
+
+//Initializing variables
+$values = array (
+  "123456789012345678901234567890123456789012345678901234567890123456789012345678901",
+  "1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901"
+);
+
+//loop through each element of values for 'str' and default value of 'chunklen'
+for($count = 0; $count < count($values); $count++) {
+  echo "-- Iteration $count --\n";
+  var_dump( chunk_split($values[$count]) );
+}
+
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : default 'chunklen' with long string 'str' ***
+-- Iteration 0 --
+string(85) "1234567890123456789012345678901234567890123456789012345678901234567890123456
+78901
+"
+-- Iteration 1 --
+string(217) "1234567890123456789012345678901234567890123456789012345678901234567890123456
+7890123456789012345678901234567890123456789012345678901234567890123456789012
+34567890123456789012345678901234567890123456789012345678901
+"
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : default 'chunklen' with long string 'str' ***
+-- Iteration 0 --
+unicode(85) "1234567890123456789012345678901234567890123456789012345678901234567890123456
+78901
+"
+-- Iteration 1 --
+unicode(217) "1234567890123456789012345678901234567890123456789012345678901234567890123456
+7890123456789012345678901234567890123456789012345678901234567890123456789012
+34567890123456789012345678901234567890123456789012345678901
+"
+Done
\ No newline at end of file
diff --git a/ext/standard/tests/strings/chunk_split_variation2.phpt b/ext/standard/tests/strings/chunk_split_variation2.phpt
new file mode 100644
index 0000000000..5f1cb076fd
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation2.phpt
@@ -0,0 +1,274 @@
+--TEST--
+Test chunk_split() function : usage variations - unexpected values for 'chunklen' argument
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: 
+*/
+
+echo "*** Testing chunk_split() : with unexpected values for 'chunklen' argument ***\n";
+
+// Initialise function arguments
+$str = 'This is chuklen variation';
+$ending = '*';
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+//get resource variable
+$fp = fopen(__FILE__, 'r');
+
+//Class to get object variable
+class MyClass
+{
+   public function __tostring() {
+     return "object";
+   }
+}
+
+//array of values to iterate over
+$values = array(
+
+  // float data
+  10.5,
+  -10.5,
+  10.5e10,
+  10.6E-10,
+  .5,
+
+  // array data
+  array(),
+  array(0),
+  array(1),
+  array(1, 2),
+  array('color' => 'red', 'item' => 'pen'),
+
+  // null data
+  NULL,
+  null,
+
+  // boolean data
+  true,
+  false,
+  TRUE,
+  FALSE,
+
+  // empty data
+  "",
+  '',
+
+  // string data
+  "string",
+  'string',
+
+  // object data
+  new MyClass(),
+
+  // undefined data
+  @$undefined_var,
+
+  // unset data
+  @$unset_var,
+
+  // resource variable
+  $fp
+);
+
+// loop through each element of the values for 'chunklen'
+for($count = 0; $count < count($values); $count++) {
+  echo "-- Iteration ".($count+1)." --\n";
+  var_dump( chunk_split($str, $values[$count], $ending) );
+}
+
+echo "Done";
+
+//closing resource
+fclose($fp);
+
+?>
+--EXPECTF--
+*** Testing chunk_split() : with unexpected values for 'chunklen' argument ***
+-- Iteration 1 --
+string(28) "This is ch*uklen vari*ation*"
+-- Iteration 2 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 3 --
+string(26) "This is chuklen variation*"
+-- Iteration 4 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 5 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 6 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d%d
+NULL
+-- Iteration 7 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d%d
+NULL
+-- Iteration 8 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d%d
+NULL
+-- Iteration 9 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d%d
+NULL
+-- Iteration 10 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d%d
+NULL
+-- Iteration 11 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 12 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 13 --
+string(50) "T*h*i*s* *i*s* *c*h*u*k*l*e*n* *v*a*r*i*a*t*i*o*n*"
+-- Iteration 14 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 15 --
+string(50) "T*h*i*s* *i*s* *c*h*u*k*l*e*n* *v*a*r*i*a*t*i*o*n*"
+-- Iteration 16 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 17 --
+
+Warning: chunk_split() expects parameter 2 to be long, string given in %s on line %d%d
+NULL
+-- Iteration 18 --
+
+Warning: chunk_split() expects parameter 2 to be long, string given in %s on line %d%d
+NULL
+-- Iteration 19 --
+
+Warning: chunk_split() expects parameter 2 to be long, string given in %s on line %d%d
+NULL
+-- Iteration 20 --
+
+Warning: chunk_split() expects parameter 2 to be long, string given in %s on line %d%d
+NULL
+-- Iteration 21 --
+
+Warning: chunk_split() expects parameter 2 to be long, object given in %s on line %d%d
+NULL
+-- Iteration 22 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 23 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 24 --
+
+Warning: chunk_split() expects parameter 2 to be long, resource given in %s on line %d%d
+NULL
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : with unexpected values for 'chunklen' argument ***
+-- Iteration 1 --
+unicode(28) "This is ch*uklen vari*ation*"
+-- Iteration 2 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 3 --
+unicode(26) "This is chuklen variation*"
+-- Iteration 4 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 5 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 6 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d
+NULL
+-- Iteration 7 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d
+NULL
+-- Iteration 8 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d
+NULL
+-- Iteration 9 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d
+NULL
+-- Iteration 10 --
+
+Warning: chunk_split() expects parameter 2 to be long, array given in %s on line %d
+NULL
+-- Iteration 11 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 12 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 13 --
+unicode(50) "T*h*i*s* *i*s* *c*h*u*k*l*e*n* *v*a*r*i*a*t*i*o*n*"
+-- Iteration 14 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 15 --
+unicode(50) "T*h*i*s* *i*s* *c*h*u*k*l*e*n* *v*a*r*i*a*t*i*o*n*"
+-- Iteration 16 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 17 --
+
+Warning: chunk_split() expects parameter 2 to be long, Unicode string given in %s on line %d
+NULL
+-- Iteration 18 --
+
+Warning: chunk_split() expects parameter 2 to be long, Unicode string given in %s on line %d
+NULL
+-- Iteration 19 --
+
+Warning: chunk_split() expects parameter 2 to be long, Unicode string given in %s on line %d
+NULL
+-- Iteration 20 --
+
+Warning: chunk_split() expects parameter 2 to be long, Unicode string given in %s on line %d
+NULL
+-- Iteration 21 --
+
+Warning: chunk_split() expects parameter 2 to be long, object given in %s on line %d
+NULL
+-- Iteration 22 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 23 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 24 --
+
+Warning: chunk_split() expects parameter 2 to be long, resource given in %s on line %d
+NULL
+Done
diff --git a/ext/standard/tests/strings/chunk_split_variation3.phpt b/ext/standard/tests/strings/chunk_split_variation3.phpt
new file mode 100644
index 0000000000..cfd1a1e3a6
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation3.phpt
@@ -0,0 +1,228 @@
+--TEST--
+Test chunk_split() function : usage variations - unexpected values for 'ending' argument
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: none
+*/
+
+echo "*** Testing chunk_split() : unexpected values for 'ending' ***\n";
+
+// Initializing variables
+$str = 'This is simple string.';
+$chunklen = 4.9;
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+//resource variable
+$fp = fopen(__FILE__,'r');
+
+//Class to get object variable
+class MyClass
+{
+  public function __tostring()
+  {
+    return "object";
+  }
+}
+
+//different values for 'ending'
+$values = array(
+
+  // int data
+  0,
+  1,
+  12345,
+  -2345,
+
+  // float data
+  10.5,
+  -10.5,
+  10.5e10,
+  10.6E-10,
+  .5,
+
+  // array data
+  array(),
+  array(0),
+  array(1),
+  array(1, 2),
+  array('color' => 'red', 'item' => 'pen'),
+
+  // null data
+  NULL,
+  null,
+
+  // boolean data
+  true,
+  false,
+  TRUE,
+  FALSE,
+
+  // empty data
+  "",
+  '',
+
+  // object data
+  new MyClass(),
+
+  // undefined data
+  @$undefined_var,
+
+  // unset data
+  @$unset_var,
+	
+  // resource data
+  $fp
+);
+
+// loop through each element of values for 'ending'
+for($count = 0; $count < count($values); $count++) {
+  echo "-- Iteration ".($count+1)." --\n";
+  var_dump( chunk_split($str, $chunklen, $values[$count]) );
+}
+
+echo "Done";
+
+//closing resource
+fclose($fp);
+?>
+--EXPECTF--
+*** Testing chunk_split() : unexpected values for 'ending' ***
+-- Iteration 1 --
+string(28) "This0 is 0simp0le s0trin0g.0"
+-- Iteration 2 --
+string(28) "This1 is 1simp1le s1trin1g.1"
+-- Iteration 3 --
+string(52) "This12345 is 12345simp12345le s12345trin12345g.12345"
+-- Iteration 4 --
+string(52) "This-2345 is -2345simp-2345le s-2345trin-2345g.-2345"
+-- Iteration 5 --
+string(46) "This10.5 is 10.5simp10.5le s10.5trin10.5g.10.5"
+-- Iteration 6 --
+string(52) "This-10.5 is -10.5simp-10.5le s-10.5trin-10.5g.-10.5"
+-- Iteration 7 --
+string(94) "This105000000000 is 105000000000simp105000000000le s105000000000trin105000000000g.105000000000"
+-- Iteration 8 --
+string(64) "This1.06E-9 is 1.06E-9simp1.06E-9le s1.06E-9trin1.06E-9g.1.06E-9"
+-- Iteration 9 --
+string(40) "This0.5 is 0.5simp0.5le s0.5trin0.5g.0.5"
+-- Iteration 10 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 11 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 12 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 13 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 14 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d%d
+NULL
+-- Iteration 15 --
+string(22) "This is simple string."
+-- Iteration 16 --
+string(22) "This is simple string."
+-- Iteration 17 --
+string(28) "This1 is 1simp1le s1trin1g.1"
+-- Iteration 18 --
+string(22) "This is simple string."
+-- Iteration 19 --
+string(28) "This1 is 1simp1le s1trin1g.1"
+-- Iteration 20 --
+string(22) "This is simple string."
+-- Iteration 21 --
+string(22) "This is simple string."
+-- Iteration 22 --
+string(22) "This is simple string."
+-- Iteration 23 --
+string(58) "Thisobject is objectsimpobjectle sobjecttrinobjectg.object"
+-- Iteration 24 --
+string(22) "This is simple string."
+-- Iteration 25 --
+string(22) "This is simple string."
+-- Iteration 26 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), resource given in %s on line %d%d
+NULL
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : unexpected values for 'ending' ***
+-- Iteration 1 --
+unicode(28) "This0 is 0simp0le s0trin0g.0"
+-- Iteration 2 --
+unicode(28) "This1 is 1simp1le s1trin1g.1"
+-- Iteration 3 --
+unicode(52) "This12345 is 12345simp12345le s12345trin12345g.12345"
+-- Iteration 4 --
+unicode(52) "This-2345 is -2345simp-2345le s-2345trin-2345g.-2345"
+-- Iteration 5 --
+unicode(46) "This10.5 is 10.5simp10.5le s10.5trin10.5g.10.5"
+-- Iteration 6 --
+unicode(52) "This-10.5 is -10.5simp-10.5le s-10.5trin-10.5g.-10.5"
+-- Iteration 7 --
+unicode(94) "This105000000000 is 105000000000simp105000000000le s105000000000trin105000000000g.105000000000"
+-- Iteration 8 --
+unicode(64) "This1.06E-9 is 1.06E-9simp1.06E-9le s1.06E-9trin1.06E-9g.1.06E-9"
+-- Iteration 9 --
+unicode(40) "This0.5 is 0.5simp0.5le s0.5trin0.5g.0.5"
+-- Iteration 10 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 11 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 12 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 13 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 14 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), array given in %s on line %d
+NULL
+-- Iteration 15 --
+unicode(22) "This is simple string."
+-- Iteration 16 --
+unicode(22) "This is simple string."
+-- Iteration 17 --
+unicode(28) "This1 is 1simp1le s1trin1g.1"
+-- Iteration 18 --
+unicode(22) "This is simple string."
+-- Iteration 19 --
+unicode(28) "This1 is 1simp1le s1trin1g.1"
+-- Iteration 20 --
+unicode(22) "This is simple string."
+-- Iteration 21 --
+unicode(22) "This is simple string."
+-- Iteration 22 --
+unicode(22) "This is simple string."
+-- Iteration 23 --
+unicode(58) "Thisobject is objectsimpobjectle sobjecttrinobjectg.object"
+-- Iteration 24 --
+unicode(22) "This is simple string."
+-- Iteration 25 --
+unicode(22) "This is simple string."
+-- Iteration 26 --
+
+Warning: chunk_split() expects parameter 3 to be string (Unicode or binary), resource given in %s on line %d
+NULL
+Done
diff --git a/ext/standard/tests/strings/chunk_split_variation4.phpt b/ext/standard/tests/strings/chunk_split_variation4.phpt
new file mode 100644
index 0000000000..e7918a7414
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation4.phpt
@@ -0,0 +1,268 @@
+--TEST--
+Test chunk_split() function : usage variations - different heredoc strings as 'str' argument 
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: none
+*/
+
+/*
+* Passing different heredoc strings as 'str' argument to the chunk_split() with 'chunklen' 4 and default 'ending'
+*/
+
+echo "*** Testing chunk_split() : heredoc strings as 'str' argument ***\n";
+
+// Initializing required variables
+$chunklen = 4;
+
+// Null heredoc string
+$heredoc_null = <<<EOT1
+EOT1;
+
+// heredoc string with single character
+$heredoc_char = <<<EOT2
+a
+EOT2;
+
+// simple heredoc string
+$heredoc_str = <<<EOT3
+This is simple heredoc string
+EOT3;
+
+// heredoc with special characters
+$heredoc_spchar = <<<EOT4
+This checks heredoc with $, %, &, chars
+EOT4;
+
+// blank heredoc string
+$heredoc_blank = <<<EOT5
+
+EOT5;
+
+// heredoc with different white space characters
+$heredoc_escchar = <<<EOT6
+This checks\t chunk_split()\nEscape\rchars
+EOT6;
+
+// heredoc with multiline
+$heredoc_multiline= <<<EOT7
+This is to check chunk_split
+function with multiline
+heredoc
+EOT7;
+
+// heredoc with quotes and slashes
+$heredoc_quote_slash = <<<EOT8
+"To check " in heredoc"
+I'm sure it'll work also with \
+which is single slash
+EOT8;
+
+//different heredoc strings for 'str'
+$heredoc_arr = array(
+  $heredoc_null,
+  $heredoc_blank,
+  $heredoc_char,
+  $heredoc_str,
+  $heredoc_multiline,
+  $heredoc_spchar,
+  $heredoc_escchar,
+  $heredoc_quote_slash
+);
+
+
+// loop through each element of the heredoc_arr for 'str'
+$count = 0;
+foreach($heredoc_arr as $str) {
+  echo "-- Iteration ".($count+1). " --\n";
+  var_dump( chunk_split( $str, $chunklen) );
+  $count++;
+};
+ 
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : heredoc strings as 'str' argument ***
+-- Iteration 1 --
+string(2) "
+"
+-- Iteration 2 --
+string(2) "
+"
+-- Iteration 3 --
+string(3) "a
+"
+-- Iteration 4 --
+string(45) "This
+ is 
+simp
+le h
+ered
+oc s
+trin
+g
+"
+-- Iteration 5 --
+string(90) "This
+ is 
+to c
+heck
+ chu
+nk_s
+plit
+
+fun
+ctio
+n wi
+th m
+ulti
+line
+
+her
+edoc
+"
+-- Iteration 6 --
+string(59) "This
+ che
+cks 
+here
+doc 
+with
+ $, 
+%, &
+, ch
+ars
+"
+-- Iteration 7 --
+string(59) "This
+ che
+cks	
+ chu
+nk_s
+plit
+()
+E
+scap
+e
+ch
+ars
+"
+-- Iteration 8 --
+string(117) ""To 
+chec
+k " 
+in h
+ered
+oc"
+
+I'm 
+sure
+ it'
+ll w
+ork 
+also
+ wit
+h \
+
+whic
+h is
+ sin
+gle 
+slas
+h
+"
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : heredoc strings as 'str' argument ***
+-- Iteration 1 --
+unicode(2) "
+"
+-- Iteration 2 --
+unicode(2) "
+"
+-- Iteration 3 --
+unicode(3) "a
+"
+-- Iteration 4 --
+unicode(45) "This
+ is 
+simp
+le h
+ered
+oc s
+trin
+g
+"
+-- Iteration 5 --
+unicode(90) "This
+ is 
+to c
+heck
+ chu
+nk_s
+plit
+
+fun
+ctio
+n wi
+th m
+ulti
+line
+
+her
+edoc
+"
+-- Iteration 6 --
+unicode(59) "This
+ che
+cks 
+here
+doc 
+with
+ $, 
+%, &
+, ch
+ars
+"
+-- Iteration 7 --
+unicode(59) "This
+ che
+cks	
+ chu
+nk_s
+plit
+()
+E
+scap
+e
+ch
+ars
+"
+-- Iteration 8 --
+unicode(117) ""To 
+chec
+k " 
+in h
+ered
+oc"
+
+I'm 
+sure
+ it'
+ll w
+ork 
+also
+ wit
+h \
+
+whic
+h is
+ sin
+gle 
+slas
+h
+"
+Done
diff --git a/ext/standard/tests/strings/chunk_split_variation5.phpt b/ext/standard/tests/strings/chunk_split_variation5.phpt
new file mode 100644
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diff --git a/ext/standard/tests/strings/chunk_split_variation6.phpt b/ext/standard/tests/strings/chunk_split_variation6.phpt
new file mode 100644
index 0000000000..f1cbc2d647
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation6.phpt
@@ -0,0 +1,105 @@
+--TEST--
+Test chunk_split() function : usage variations - single quoted strings for 'str' argument
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: none
+*/
+
+/*
+* chunk_split() : passing single quoted strings for 'str' to the function
+*/
+
+echo "*** Testing chunk_split() : with different single quoted 'str' ***\n";
+
+//Initializing variables
+$chunklen = 7;
+$ending = "):(";
+
+//different single quoted string for 'str'
+$values = array(
+  '',  //empty
+  ' ',  //space
+  'This is simple string',  //regular string                                   
+  'It\'s string with quotes',                                  
+  'This contains @ # $ % ^ & chars',   //special characters                   
+  'This string\tcontains\rwhite space\nchars',  //with white space chars      
+  'This is string with 1234 numbers',                    
+  'This is string with \0 and ".chr(0)."null chars',  //for binary safe 
+  'This is string with    multiple         space char',  
+  'This is to check string with ()',                           
+  '     Testing with    Tab     ',  //string with TAB                         
+  'Testing invalid \k and \m escape char',            
+  'This is to check with \\n and \\t'                     
+);                                                                         
+                                                          
+
+//Loop through each element of values for 'str'
+for($count = 0;$count < count($values);$count++) {
+  echo "-- Iteration $count --\n";
+  var_dump( chunk_split($values[$count], $chunklen, $ending) );
+}
+
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : with different single quoted 'str' ***
+-- Iteration 0 --
+string(3) "):("
+-- Iteration 1 --
+string(4) " ):("
+-- Iteration 2 --
+string(30) "This is):( simple):( string):("
+-- Iteration 3 --
+string(35) "It's st):(ring wi):(th quot):(es):("
+-- Iteration 4 --
+string(46) "This co):(ntains ):(@ # $ %):( ^ & ch):(ars):("
+-- Iteration 5 --
+string(59) "This st):(ring\tc):(ontains):(\rwhite):( space\):(nchars):("
+-- Iteration 6 --
+string(47) "This is):( string):( with 1):(234 num):(bers):("
+-- Iteration 7 --
+string(68) "This is):( string):( with \):(0 and "):(.chr(0)):(."null ):(chars):("
+-- Iteration 8 --
+string(74) "This is):( string):( with  ):(  multi):(ple    ):(     sp):(ace cha):(r):("
+-- Iteration 9 --
+string(46) "This is):( to che):(ck stri):(ng with):( ()):("
+-- Iteration 10 --
+string(44) "     Te):(sting w):(ith    ):(Tab    ):( ):("
+-- Iteration 11 --
+string(55) "Testing):( invali):(d \k an):(d \m es):(cape ch):(ar):("
+-- Iteration 12 --
+string(46) "This is):( to che):(ck with):( \n and):( \t):("
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : with different single quoted 'str' ***
+-- Iteration 0 --
+unicode(3) "):("
+-- Iteration 1 --
+unicode(4) " ):("
+-- Iteration 2 --
+unicode(30) "This is):( simple):( string):("
+-- Iteration 3 --
+unicode(35) "It's st):(ring wi):(th quot):(es):("
+-- Iteration 4 --
+unicode(46) "This co):(ntains ):(@ # $ %):( ^ & ch):(ars):("
+-- Iteration 5 --
+unicode(59) "This st):(ring\tc):(ontains):(\rwhite):( space\):(nchars):("
+-- Iteration 6 --
+unicode(47) "This is):( string):( with 1):(234 num):(bers):("
+-- Iteration 7 --
+unicode(68) "This is):( string):( with \):(0 and "):(.chr(0)):(."null ):(chars):("
+-- Iteration 8 --
+unicode(74) "This is):( string):( with  ):(  multi):(ple    ):(     sp):(ace cha):(r):("
+-- Iteration 9 --
+unicode(46) "This is):( to che):(ck stri):(ng with):( ()):("
+-- Iteration 10 --
+unicode(44) "     Te):(sting w):(ith    ):(Tab    ):( ):("
+-- Iteration 11 --
+unicode(55) "Testing):( invali):(d \k an):(d \m es):(cape ch):(ar):("
+-- Iteration 12 --
+unicode(46) "This is):( to che):(ck with):( \n and):( \t):("
+Done
\ No newline at end of file
diff --git a/ext/standard/tests/strings/chunk_split_variation7.phpt b/ext/standard/tests/strings/chunk_split_variation7.phpt
new file mode 100644
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diff --git a/ext/standard/tests/strings/chunk_split_variation8.phpt b/ext/standard/tests/strings/chunk_split_variation8.phpt
new file mode 100644
index 0000000000..c3ceeceb4c
--- /dev/null
+++ b/ext/standard/tests/strings/chunk_split_variation8.phpt
@@ -0,0 +1,128 @@
+--TEST--
+Test chunk_split() function : usage variations - different integer values for 'chunklen' with heredoc string as 'str'
+--FILE--
+<?php
+/* Prototype  : string chunk_split(string $str [, int $chunklen [, string $ending]])
+ * Description: Returns split line
+ * Source code: ext/standard/string.c
+ * Alias to functions: 
+*/
+
+/*
+* passing different integer values for 'chunklen' and heredoc string for 'str' to chunk_split()
+*/
+
+echo "*** Testing chunk_split() : different 'chunklen' with heredoc 'str' ***\n";
+
+
+// Initializing required variables
+//heredoc string as str
+$heredoc_str = <<<EOT
+This's heredoc string with \t and \n white space char.
+It has _speci@l ch@r$ 2222 !!!Now \k as escape char to test
+chunk_split()
+EOT;
+
+$ending = ':::';
+
+// different values for 'chunklen'
+$values = array (
+  0,  
+  1,  
+  -123,  //negative integer
+  0234,  //octal number
+  0x1A,  //hexadecimal number
+  2147483647,  //max positive integer number
+  2147483648,  //max positive integer+1
+  -2147483648,  //min negative integer
+
+);
+
+
+// loop through each element of values for 'chunklen'
+for($count = 0; $count < count($values); $count++) {
+  echo "-- Iteration ".($count+1). " --\n";
+  var_dump( chunk_split($heredoc_str, $values[$count], $ending) );
+}
+
+echo "Done"
+?>
+--EXPECTF--
+*** Testing chunk_split() : different 'chunklen' with heredoc 'str' ***
+-- Iteration 1 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 2 --
+string(504) "T:::h:::i:::s:::':::s::: :::h:::e:::r:::e:::d:::o:::c::: :::s:::t:::r:::i:::n:::g::: :::w:::i:::t:::h::: :::	::: :::a:::n:::d::: :::
+::: :::w:::h:::i:::t:::e::: :::s:::p:::a:::c:::e::: :::c:::h:::a:::r:::.:::
+:::I:::t::: :::h:::a:::s::: :::_:::s:::p:::e:::c:::i:::@:::l::: :::c:::h:::@:::r:::$::: :::2:::2:::2:::2::: :::!:::!:::!:::N:::o:::w::: :::\:::k::: :::a:::s::: :::e:::s:::c:::a:::p:::e::: :::c:::h:::a:::r::: :::t:::o::: :::t:::e:::s:::t:::
+:::c:::h:::u:::n:::k:::_:::s:::p:::l:::i:::t:::(:::):::"
+-- Iteration 3 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 4 --
+string(129) "This's heredoc string with 	 and 
+ white space char.
+It has _speci@l ch@r$ 2222 !!!Now \k as escape char to test
+chunk_split():::"
+-- Iteration 5 --
+string(141) "This's heredoc string with::: 	 and 
+ white space char.:::
+It has _speci@l ch@r$ 222:::2 !!!Now \k as escape char::: to test
+chunk_split():::"
+-- Iteration 6 --
+string(129) "This's heredoc string with 	 and 
+ white space char.
+It has _speci@l ch@r$ 2222 !!!Now \k as escape char to test
+chunk_split():::"
+-- Iteration 7 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+-- Iteration 8 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d%d
+bool(false)
+Done
+
+--UEXPECTF--
+*** Testing chunk_split() : different 'chunklen' with heredoc 'str' ***
+-- Iteration 1 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 2 --
+unicode(504) "T:::h:::i:::s:::':::s::: :::h:::e:::r:::e:::d:::o:::c::: :::s:::t:::r:::i:::n:::g::: :::w:::i:::t:::h::: :::	::: :::a:::n:::d::: :::
+::: :::w:::h:::i:::t:::e::: :::s:::p:::a:::c:::e::: :::c:::h:::a:::r:::.:::
+:::I:::t::: :::h:::a:::s::: :::_:::s:::p:::e:::c:::i:::@:::l::: :::c:::h:::@:::r:::$::: :::2:::2:::2:::2::: :::!:::!:::!:::N:::o:::w::: :::\:::k::: :::a:::s::: :::e:::s:::c:::a:::p:::e::: :::c:::h:::a:::r::: :::t:::o::: :::t:::e:::s:::t:::
+:::c:::h:::u:::n:::k:::_:::s:::p:::l:::i:::t:::(:::):::"
+-- Iteration 3 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 4 --
+unicode(129) "This's heredoc string with 	 and 
+ white space char.
+It has _speci@l ch@r$ 2222 !!!Now \k as escape char to test
+chunk_split():::"
+-- Iteration 5 --
+unicode(141) "This's heredoc string with::: 	 and 
+ white space char.:::
+It has _speci@l ch@r$ 222:::2 !!!Now \k as escape char::: to test
+chunk_split():::"
+-- Iteration 6 --
+unicode(129) "This's heredoc string with 	 and 
+ white space char.
+It has _speci@l ch@r$ 2222 !!!Now \k as escape char to test
+chunk_split():::"
+-- Iteration 7 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+-- Iteration 8 --
+
+Warning: chunk_split(): Chunk length should be greater than zero in %s on line %d
+bool(false)
+Done
diff --git a/ext/standard/tests/strings/chunk_split_variation9.phpt b/ext/standard/tests/strings/chunk_split_variation9.phpt
new file mode 100644
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-- 
2.50.1