New testcases for array_intersect_key() function

9 files changed, 1165 insertions, 0 deletions

diff --git a/ext/standard/tests/array/array_intersect_key_error.phpt b/ext/standard/tests/array/array_intersect_key_error.phpt
new file mode 100644
index 0000000000..78f074fe4e
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_error.phpt
@@ -0,0 +1,36 @@
+--TEST--
+Test array_intersect_key() function : error conditions 
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : error conditions ***\n";
+
+//Initialise function arguments
+$array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4);
+
+// Testing array_intersect_key with one less than the expected number of arguments
+echo "\n-- Testing array_intersect_key() function with less than expected no. of arguments --\n";
+var_dump( array_intersect_key($array1) );
+
+// Testing array_intersect_key with one less than the expected number of arguments
+echo "\n-- Testing array_intersect_key() function with no arguments --\n";
+var_dump( array_intersect_key() );
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : error conditions ***
+
+-- Testing array_intersect_key() function with less than expected no. of arguments --
+
+Warning: Wrong parameter count for array_intersect_key() in %s on line %d
+NULL
+
+-- Testing array_intersect_key() function with no arguments --
+
+Warning: Wrong parameter count for array_intersect_key() in %s on line %d
+NULL
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation1.phpt b/ext/standard/tests/array/array_intersect_key_variation1.phpt
new file mode 100644
index 0000000000..c28394ba81
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation1.phpt
@@ -0,0 +1,315 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing unexpected values to first argument
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+// Initialise function arguments not being substituted (if any)
+$array2 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4);
+$array3 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8);
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+//resource variable
+$fp = fopen(__FILE__, "r");
+
+// define some classes
+class classWithToString
+{
+	public function __toString() {
+		return "Class A object";
+	}
+}
+
+class classWithoutToString
+{
+}
+
+// heredoc string
+$heredoc = <<<EOT
+hello world
+EOT;
+
+// add arrays
+$index_array = array (1, 2, 3);
+$assoc_array = array ('one' => 1, 'two' => 2);
+
+//array of values to iterate over
+$inputs = array(
+
+      // int data
+      'int 0' => 0,
+      'int 1' => 1,
+      'int 12345' => 12345,
+      'int -12345' => -12345,
+
+      // float data
+      'float 10.5' => 10.5,
+      'float -10.5' => -10.5,
+      'float 12.3456789000e10' => 12.3456789000e10,
+      'float -12.3456789000e10' => -12.3456789000e10,
+      'float .5' => .5,
+
+      // null data
+      'uppercase NULL' => NULL,
+      'lowercase null' => null,
+
+      // boolean data
+      'lowercase true' => true,
+      'lowercase false' =>false,
+      'uppercase TRUE' =>TRUE,
+      'uppercase FALSE' =>FALSE,
+
+      // empty data
+      'empty string DQ' => "",
+      'empty string SQ' => '',
+
+      // string data
+      'string DQ' => "string",
+      'string SQ' => 'string',
+      'mixed case string' => "sTrInG",
+      'heredoc' => $heredoc,
+
+      // object data
+      'instance of classWithToString' => new classWithToString(),
+      'instance of classWithoutToString' => new classWithoutToString(),
+
+      // undefined data
+      'undefined var' => @$undefined_var,
+
+      // unset data
+      'unset var' => @$unset_var,
+
+      // resource data
+      'resource var' => $fp,
+);
+
+// loop through each element of the array for arr1
+
+foreach($inputs as $key =>$value) {
+      echo "\n--$key--\n";
+      var_dump( array_intersect_key($value, $array2) );
+      var_dump( array_intersect_key($value, $array2, $array3) );
+}
+
+fclose($fp);
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+
+--int 0--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--int 1--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--int 12345--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--int -12345--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--float 10.5--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--float -10.5--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--float 12.3456789000e10--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--float -12.3456789000e10--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--float .5--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--uppercase NULL--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--lowercase null--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--lowercase true--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--lowercase false--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--uppercase TRUE--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--uppercase FALSE--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--empty string DQ--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--empty string SQ--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--string DQ--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--string SQ--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--mixed case string--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--heredoc--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--instance of classWithToString--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--instance of classWithoutToString--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--undefined var--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--unset var--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+--resource var--
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #1 is not an array in %s on line %d
+NULL
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation2.phpt b/ext/standard/tests/array/array_intersect_key_variation2.phpt
new file mode 100644
index 0000000000..59b769be66
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation2.phpt
@@ -0,0 +1,314 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing unexpected values to second argument
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+// Initialise function arguments not being substituted (if any)
+$array1 = array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4);
+$array3 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8);
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+//resource variable
+$fp = fopen(__FILE__, "r");
+
+// define some classes
+class classWithToString
+{
+	public function __toString() {
+		return "Class A object";
+	}
+}
+
+class classWithoutToString
+{
+}
+
+// heredoc string
+$heredoc = <<<EOT
+hello world
+EOT;
+
+// add arrays
+$index_array = array (1, 2, 3);
+$assoc_array = array ('one' => 1, 'two' => 2);
+
+//array of values to iterate over
+$inputs = array(
+
+      // int data
+      'int 0' => 0,
+      'int 1' => 1,
+      'int 12345' => 12345,
+      'int -12345' => -12345,
+
+      // float data
+      'float 10.5' => 10.5,
+      'float -10.5' => -10.5,
+      'float 12.3456789000e10' => 12.3456789000e10,
+      'float -12.3456789000e10' => -12.3456789000e10,
+      'float .5' => .5,
+
+      // null data
+      'uppercase NULL' => NULL,
+      'lowercase null' => null,
+
+      // boolean data
+      'lowercase true' => true,
+      'lowercase false' =>false,
+      'uppercase TRUE' =>TRUE,
+      'uppercase FALSE' =>FALSE,
+
+      // empty data
+      'empty string DQ' => "",
+      'empty string SQ' => '',
+
+      // string data
+      'string DQ' => "string",
+      'string SQ' => 'string',
+      'mixed case string' => "sTrInG",
+      'heredoc' => $heredoc,
+
+      // object data
+      'instance of classWithToString' => new classWithToString(),
+      'instance of classWithoutToString' => new classWithoutToString(),
+
+      // undefined data
+      'undefined var' => @$undefined_var,
+
+      // unset data
+      'unset var' => @$unset_var,
+
+      // resource data
+      'resource var' => $fp,
+);
+
+// loop through each element of the array for arr2
+foreach($inputs as $key =>$value) {
+      echo "\n--$key--\n";
+      var_dump( array_intersect_key($array1, $value) );
+      var_dump( array_intersect_key($array1, $value, $array3) );
+}
+
+fclose($fp);
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+
+--int 0--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--int 1--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--int 12345--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--int -12345--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--float 10.5--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--float -10.5--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--float 12.3456789000e10--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--float -12.3456789000e10--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--float .5--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--uppercase NULL--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--lowercase null--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--lowercase true--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--lowercase false--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--uppercase TRUE--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--uppercase FALSE--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--empty string DQ--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--empty string SQ--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--string DQ--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--string SQ--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--mixed case string--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--heredoc--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--instance of classWithToString--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--instance of classWithoutToString--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--undefined var--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--unset var--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+--resource var--
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+
+Warning: array_intersect_key(): Argument #2 is not an array in %s on line %d
+NULL
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation3.phpt b/ext/standard/tests/array/array_intersect_key_variation3.phpt
new file mode 100644
index 0000000000..8fd3d3c77f
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation3.phpt
@@ -0,0 +1,235 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing unexpected values to optional argument
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+// Initialise function arguments not being substituted (if any)
+$array1 = array('blue'  => 1, 'red'  => 2, 'green'  => 3, 'purple' => 4);
+$array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan'   => 8);
+
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+//resource variable
+$fp = fopen(__FILE__, "r");
+
+// define some classes
+class classWithToString
+{
+	public function __toString() {
+		return "Class A object";
+	}
+}
+
+class classWithoutToString
+{
+}
+
+// heredoc string
+$heredoc = <<<EOT
+hello world
+EOT;
+
+// add arrays
+$index_array = array (1, 2, 3);
+$assoc_array = array ('one' => 1, 'two' => 2);
+
+//array of values to iterate over
+$inputs = array(
+
+      // int data
+      'int 0' => 0,
+      'int 1' => 1,
+      'int 12345' => 12345,
+      'int -12345' => -12345,
+
+      // float data
+      'float 10.5' => 10.5,
+      'float -10.5' => -10.5,
+      'float 12.3456789000e10' => 12.3456789000e10,
+      'float -12.3456789000e10' => -12.3456789000e10,
+      'float .5' => .5,
+
+      // null data
+      'uppercase NULL' => NULL,
+      'lowercase null' => null,
+
+      // boolean data
+      'lowercase true' => true,
+      'lowercase false' =>false,
+      'uppercase TRUE' =>TRUE,
+      'uppercase FALSE' =>FALSE,
+
+      // empty data
+      'empty string DQ' => "",
+      'empty string SQ' => '',
+
+      // string data
+      'string DQ' => "string",
+      'string SQ' => 'string',
+      'mixed case string' => "sTrInG",
+      'heredoc' => $heredoc,
+
+      // object data
+      'instance of classWithToString' => new classWithToString(),
+      'instance of classWithoutToString' => new classWithoutToString(),
+
+      // undefined data
+      'undefined var' => @$undefined_var,
+
+      // unset data
+      'unset var' => @$unset_var,
+
+      // resource data
+      'resource var' => $fp,
+);
+
+// loop through each element of the array for arr2
+foreach($inputs as $key =>$value) {
+      echo "\n--$key--\n";
+      var_dump( array_intersect_key($array1, $array2, $value) );
+}
+
+fclose($fp);
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+
+--int 0--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--int 1--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--int 12345--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--int -12345--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--float 10.5--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--float -10.5--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--float 12.3456789000e10--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--float -12.3456789000e10--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--float .5--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--uppercase NULL--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--lowercase null--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--lowercase true--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--lowercase false--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--uppercase TRUE--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--uppercase FALSE--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--empty string DQ--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--empty string SQ--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--string DQ--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--string SQ--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--mixed case string--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--heredoc--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--instance of classWithToString--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--instance of classWithoutToString--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--undefined var--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--unset var--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+
+--resource var--
+
+Warning: array_intersect_key(): Argument #3 is not an array in %s on line %d
+NULL
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation4.phpt b/ext/standard/tests/array/array_intersect_key_variation4.phpt
new file mode 100644
index 0000000000..1223d2153e
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation4.phpt
@@ -0,0 +1,60 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing integer indexed array
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+// Initialise function arguments not being substituted (if any)
+$input_array = array(0 => '0', -1 => '-1' , 02 => 'two', -07 => '-07', 0xA => '0xA', -0xC => '-0xc'); 
+
+$input_arrays = array(
+      'decimal indexed' => array(10 => '10', '-17' => '-17'),
+      'octal indexed' => array(-011 => '-011', 012 => '012'),
+      'hexa  indexed' => array(0x12 => '0x12', -0x7 => '-0x7', ),
+);
+
+foreach($input_arrays as $key =>$value) {
+      echo "\n--$key--\n";
+      var_dump( array_intersect_key($input_array, $value) );
+      var_dump( array_intersect_key($value, $input_array ) );
+}
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+
+--decimal indexed--
+array(1) {
+  [10]=>
+  string(3) "0xA"
+}
+array(1) {
+  [10]=>
+  string(2) "10"
+}
+
+--octal indexed--
+array(1) {
+  [10]=>
+  string(3) "0xA"
+}
+array(1) {
+  [10]=>
+  string(3) "012"
+}
+
+--hexa  indexed--
+array(1) {
+  [-7]=>
+  string(3) "-07"
+}
+array(1) {
+  [-7]=>
+  string(4) "-0x7"
+}
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation5.phpt b/ext/standard/tests/array/array_intersect_key_variation5.phpt
new file mode 100644
index 0000000000..c286de6e3f
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation5.phpt
@@ -0,0 +1,41 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing float indexed array
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+// Initialise function arguments not being substituted (if any)
+$input_array = array(0 => '0', 10 => '10' , -10 => '-10'); 
+$float_indx_array = array(0.0 => '0.0', 10.5 => '10.5' , -10.5 => '-10.5', 0.5 => '0.5'); 
+
+echo "\n-- Testing array_intersect_key() function with float indexed array --\n";
+var_dump( array_intersect_key($input_array, $float_indx_array) );
+var_dump( array_intersect_key($float_indx_array,$input_array ) );
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+
+-- Testing array_intersect_key() function with float indexed array --
+array(3) {
+  [0]=>
+  string(1) "0"
+  [10]=>
+  string(2) "10"
+  [-10]=>
+  string(3) "-10"
+}
+array(3) {
+  [0]=>
+  string(3) "0.5"
+  [10]=>
+  string(4) "10.5"
+  [-10]=>
+  string(5) "-10.5"
+}
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation6.phpt b/ext/standard/tests/array/array_intersect_key_variation6.phpt
new file mode 100644
index 0000000000..823b0707d9
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation6.phpt
@@ -0,0 +1,37 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing boolean indexed array
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+// Initialise function arguments not being substituted (if any)
+$input_array = array(0 => '0', 1 => '1' , -10 => '-10'); 
+$boolean_indx_array = array(true => 'boolt', false => 'boolf', TRUE => 'boolT', FALSE => 'boolF');
+
+echo "\n-- Testing array_intersect_key() function with boolean indexed array --\n";
+var_dump( array_intersect_key($input_array, $boolean_indx_array) );
+var_dump( array_intersect_key($boolean_indx_array,$input_array ) );
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+
+-- Testing array_intersect_key() function with boolean indexed array --
+array(2) {
+  [0]=>
+  string(1) "0"
+  [1]=>
+  string(1) "1"
+}
+array(2) {
+  [1]=>
+  string(5) "boolT"
+  [0]=>
+  string(5) "boolF"
+}
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation7.phpt b/ext/standard/tests/array/array_intersect_key_variation7.phpt
new file mode 100644
index 0000000000..fe4446a243
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation7.phpt
@@ -0,0 +1,63 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing null,unset and undefeined variable indexed array
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+// Initialise function arguments not being substituted (if any)
+$input_array = array(0 => '0', 1 => '1' , -10 => '-10' , null => 'null'); 
+//get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+$input_arrays = array(
+      'null indexed' => array(NULL => 'null 1', null => 'null 2'),
+      'undefined indexed' => array(@$undefined_var => 'undefined'),
+      'unset  indexed' => array(@$unset_var => 'unset'),
+);
+
+foreach($input_arrays as $key =>$value) {
+      echo "\n--$key--\n";
+      var_dump( array_intersect_key($input_array, $value) );
+      var_dump( array_intersect_key($value,$input_array ) );
+}      
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+
+--null indexed--
+array(1) {
+  [""]=>
+  string(4) "null"
+}
+array(1) {
+  [""]=>
+  string(6) "null 2"
+}
+
+--undefined indexed--
+array(1) {
+  [""]=>
+  string(4) "null"
+}
+array(1) {
+  [""]=>
+  string(9) "undefined"
+}
+
+--unset  indexed--
+array(1) {
+  [""]=>
+  string(4) "null"
+}
+array(1) {
+  [""]=>
+  string(5) "unset"
+}
+===DONE===
diff --git a/ext/standard/tests/array/array_intersect_key_variation8.phpt b/ext/standard/tests/array/array_intersect_key_variation8.phpt
new file mode 100644
index 0000000000..2b889b5965
--- /dev/null
+++ b/ext/standard/tests/array/array_intersect_key_variation8.phpt
@@ -0,0 +1,64 @@
+--TEST--
+Test array_intersect_key() function : usage variation - Passing Multi dimensional array
+--FILE--
+<?php
+/* Prototype  : array array_intersect_key(array arr1, array arr2 [, array ...])
+ * Description: Returns the entries of arr1 that have keys which are present in all the other arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_intersect_key() : usage variation ***\n";
+
+/// Initialise function arguments not being substituted (if any)
+$array1 = array(
+
+	  'first' => array('blue'  => 1, 'red'  => 2),
+              
+      'second' => array('yellow' => 7),
+              
+      'third' => array(0 =>'zero'),
+);
+
+$array2 = array (
+
+	  'first' => array('blue'  => 1, 'red'  => 2,),
+              
+      'second' => array('cyan'   => 8),
+              
+      'fourth' => array(2 => 'two'), 
+);
+var_dump( array_intersect_key($array1, $array2) );
+var_dump( array_intersect_key($array2,$array1 ) ); 
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_intersect_key() : usage variation ***
+array(2) {
+  ["first"]=>
+  array(2) {
+    ["blue"]=>
+    int(1)
+    ["red"]=>
+    int(2)
+  }
+  ["second"]=>
+  array(1) {
+    ["yellow"]=>
+    int(7)
+  }
+}
+array(2) {
+  ["first"]=>
+  array(2) {
+    ["blue"]=>
+    int(1)
+    ["red"]=>
+    int(2)
+  }
+  ["second"]=>
+  array(1) {
+    ["cyan"]=>
+    int(8)
+  }
+}
+===DONE===