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diff --git a/ext/standard/tests/array/array_walk_variation6.phpt b/ext/standard/tests/array/array_walk_variation6.phpt
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+++ b/ext/standard/tests/array/array_walk_variation6.phpt
@@ -0,0 +1,143 @@
+--TEST--
+Test array_walk() function : usage variations - 'input' argument as diff. associative arrays
+--FILE--
+<?php
+/* Prototype  : bool array_walk(array $input, string $funcname [, mixed $userdata])
+ * Description: Apply a user function to every member of an array 
+ * Source code: ext/standard/array.c
+*/
+
+/*
+ * Passing 'input' argument as an associative array 
+ *    with Numeric & string keys
+*/
+
+echo "*** Testing array_walk() : 'input' as an associative array ***\n";
+
+// callback functions
+/* Prototype : for_numeric( int $value, int $key, int $user_data)
+ * Parameters : $value - value from key/value pair of the array 
+ *              $key - key from key/value pair of the array
+ *              $user_data - data to be added to 'value'
+ * Description : Function adds values with keys & user_data
+ */
+function for_numeric($value, $key, $user_data)
+{
+  // dump the input values to see if they are 
+  // passed with correct type
+  var_dump($key);
+  var_dump($value);
+  var_dump($user_data);
+  echo "\n"; // new line to separate the output between each element
+}
+
+/* Prototype : for_string( string $value, string $key)
+ * Parameters : $value - values in given input array
+ *              $key - keys in given input array
+ * Description : Function appends key to the value
+ */
+function for_string($value, $key)
+{
+  // dump the input values to see if they are 
+  // passed with correct type
+  var_dump($key);
+  var_dump($value);
+  echo "\n"; // new line to separate the output between each element
+}
+
+/* Prototype : for_mixed( mixed $value, mixed $key)
+ * Parameters : $value - values in given input array
+ *              $key - keys in given input array
+ * Description : Function displays each element of an array with keys
+ */
+function for_mixed($value, $key)
+{
+  // dump the input values to see if they are 
+  // passed with correct type
+  var_dump($key);
+  var_dump($value);
+  echo "\n"; // new line to separate the output between each element
+}
+
+// Numeric keys
+$input = array( 1 => 25, 5 => 12, 0 => -80, -2 => 100, 5 => 30);
+echo "-- Associative array with numeric keys --\n";
+var_dump( array_walk($input, "for_numeric", 10));
+
+// String keys
+$input = array( "a" => "Apple", 'b' => 'Bananna', "c" => "carrot", 'o' => "Orange");
+echo "-- Associative array with string keys --\n";
+var_dump( array_walk($input, "for_string"));
+
+// binary keys
+$input = array( b"a" => "Apple", b"b" => "Banana");
+echo "-- Associative array with binary keys --\n";
+var_dump( array_walk($input, "for_string"));
+
+// Mixed keys - numeric/string
+$input = array( 0 => 1, 1 => 2, "a" => "Apple", "b" => "Banana", 2 =>3);
+echo "-- Associative array with numeric/string keys --\n";
+var_dump( array_walk($input, "for_mixed"));
+
+echo "Done"
+?>
+--EXPECTF--
+*** Testing array_walk() : 'input' as an associative array ***
+-- Associative array with numeric keys --
+int(1)
+int(25)
+int(10)
+
+int(5)
+int(30)
+int(10)
+
+int(0)
+int(-80)
+int(10)
+
+int(-2)
+int(100)
+int(10)
+
+bool(true)
+-- Associative array with string keys --
+string(1) "a"
+string(5) "Apple"
+
+string(1) "b"
+string(7) "Bananna"
+
+string(1) "c"
+string(6) "carrot"
+
+string(1) "o"
+string(6) "Orange"
+
+bool(true)
+-- Associative array with binary keys --
+string(1) "a"
+string(5) "Apple"
+
+string(1) "b"
+string(6) "Banana"
+
+bool(true)
+-- Associative array with numeric/string keys --
+int(0)
+int(1)
+
+int(1)
+int(2)
+
+string(1) "a"
+string(5) "Apple"
+
+string(1) "b"
+string(6) "Banana"
+
+int(2)
+int(3)
+
+bool(true)
+Done