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diff --git a/ext/standard/tests/array/array_diff_variation8.phpt b/ext/standard/tests/array/array_diff_variation8.phpt
new file mode 100644
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+++ b/ext/standard/tests/array/array_diff_variation8.phpt
@@ -0,0 +1,207 @@
+--TEST--
+Test array_diff() function : usage variations - associative arrays contianing different data types
+--FILE--
+<?php
+/* Prototype  : array array_diff(array $arr1, array $arr2 [, array ...])
+ * Description: Returns the entries of $arr1 that have values which are
+ * not present in any of the others arguments. 
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test array_diff() with associative arrays containing different data types as values
+ */
+
+echo "*** Testing array_diff() : usage variations ***\n";
+
+$array = array('a' => '1', 'b' => '2', 'c' => '3');
+
+// get an unset variable
+$unset_var = 10;
+unset ($unset_var);
+
+// get a resource variable
+$fp = fopen(__FILE__, "r");
+
+// get a class
+class classA
+{
+  public function __toString() {
+     return "Class A object";
+  }
+}
+
+// get a heredoc string
+$heredoc = <<<EOT
+Hello world
+EOT;
+
+// associative arrays with different values
+$inputs = array (
+       // arrays with integer values
+/*1*/  array('0' => 0, '1' => 0),
+       array("one" => 1, 'two' => 2, "three" => 1, 4 => 1),
+
+       // arrays with float values
+/*3*/  array("float1" => 2.3333, "float2" => 2.3333),
+       array("f1" => 1.2, 'f2' => 3.33, 3 => 4.89999922839999, 'f4' => 1.2),
+
+       // arrays with string values
+/*5*/  array(111 => "\tHello", "red" => "col\tor", 2 => "\v\fworld", 3.3 =>  "\tHello"),
+       array(111 => '\tHello', "red" => 'col\tor', 2 => '\v\fworld', 3.3 =>  '\tHello'),
+       array(1 => "hello", "heredoc" => $heredoc, $heredoc),
+
+       // array with object, unset variable and resource variable
+/*8*/ array(11 => new classA(), "unset" => @$unset_var, "resource" => $fp, new classA(), $fp),
+);
+
+// loop through each sub-array of $inputs to check the behavior of array_unique()
+$iterator = 1;
+foreach($inputs as $input) {
+  echo "-- Iteration $iterator --\n";
+  var_dump( array_diff($array, $input) );
+  var_dump( array_diff($input, $array) );
+  $iterator++;
+}
+
+fclose($fp);
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_diff() : usage variations ***
+-- Iteration 1 --
+array(3) {
+  ["a"]=>
+  string(1) "1"
+  ["b"]=>
+  string(1) "2"
+  ["c"]=>
+  string(1) "3"
+}
+array(2) {
+  [0]=>
+  int(0)
+  [1]=>
+  int(0)
+}
+-- Iteration 2 --
+array(1) {
+  ["c"]=>
+  string(1) "3"
+}
+array(0) {
+}
+-- Iteration 3 --
+array(3) {
+  ["a"]=>
+  string(1) "1"
+  ["b"]=>
+  string(1) "2"
+  ["c"]=>
+  string(1) "3"
+}
+array(2) {
+  ["float1"]=>
+  float(2.3333)
+  ["float2"]=>
+  float(2.3333)
+}
+-- Iteration 4 --
+array(3) {
+  ["a"]=>
+  string(1) "1"
+  ["b"]=>
+  string(1) "2"
+  ["c"]=>
+  string(1) "3"
+}
+array(4) {
+  ["f1"]=>
+  float(1.2)
+  ["f2"]=>
+  float(3.33)
+  [3]=>
+  float(4.8999992284)
+  ["f4"]=>
+  float(1.2)
+}
+-- Iteration 5 --
+array(3) {
+  ["a"]=>
+  string(1) "1"
+  ["b"]=>
+  string(1) "2"
+  ["c"]=>
+  string(1) "3"
+}
+array(4) {
+  [111]=>
+  string(6) "	Hello"
+  ["red"]=>
+  string(6) "col	or"
+  [2]=>
+  string(7) "world"
+  [3]=>
+  string(6) "	Hello"
+}
+-- Iteration 6 --
+array(3) {
+  ["a"]=>
+  string(1) "1"
+  ["b"]=>
+  string(1) "2"
+  ["c"]=>
+  string(1) "3"
+}
+array(4) {
+  [111]=>
+  string(7) "\tHello"
+  ["red"]=>
+  string(7) "col\tor"
+  [2]=>
+  string(9) "\v\fworld"
+  [3]=>
+  string(7) "\tHello"
+}
+-- Iteration 7 --
+array(3) {
+  ["a"]=>
+  string(1) "1"
+  ["b"]=>
+  string(1) "2"
+  ["c"]=>
+  string(1) "3"
+}
+array(3) {
+  [1]=>
+  string(5) "hello"
+  ["heredoc"]=>
+  string(11) "Hello world"
+  [2]=>
+  string(11) "Hello world"
+}
+-- Iteration 8 --
+array(3) {
+  ["a"]=>
+  string(1) "1"
+  ["b"]=>
+  string(1) "2"
+  ["c"]=>
+  string(1) "3"
+}
+array(5) {
+  [11]=>
+  object(classA)#%d (0) {
+  }
+  ["unset"]=>
+  NULL
+  ["resource"]=>
+  resource(%d) of type (stream)
+  [12]=>
+  object(classA)#%d (0) {
+  }
+  [13]=>
+  resource(%d) of type (stream)
+}
+Done