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+--TEST--
+Test array_map() function : usage variations - non existent 'callback' function
+--FILE--
+<?php
+/* Prototype : array array_map ( callback $callback , array $arr1 [, array $... ] )
+ * Description: Applies the callback to the elements of the given arrays
+ * Source code: ext/standard/array.c
+ */
+
+/*
+ * Test array_map() by passing non existent function for $callback argument
+ */
+
+echo "*** Testing array_map() : non existent 'callback' function ***\n";
+
+// arrays to be passed as arguments
+$arr1 = array(1, 2);
+$arr2 = array("one", "two");
+$arr3 = array(1.1, 2.2);
+
+var_dump( array_map('non_existent', $arr1, $arr2, $arr3) );
+
+echo "Done";
+?>
+--EXPECTF--
+*** Testing array_map() : non existent 'callback' function ***
+
+Warning: array_map() expects parameter 1 to be a valid callback, function 'non_existent' not found or invalid function name in %s on line %d
+NULL
+Done