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+--TEST--
+Test array_diff_uassoc() function : usage variation -Passing classWithoutToString (handling fatal error) to callback
+--FILE--
+<?php
+/* Prototype : array array_diff_uassoc(array arr1, array arr2 [, array ...], callback key_comp_func)
+ * Description: Computes the difference of arrays with additional index check which is performed by a
+ * user supplied callback function
+ * Source code: ext/standard/array.c
+ */
+
+echo "*** Testing array_diff_uassoc() : usage variation ***\n";
+
+//Initialize array
+$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
+$array2 = array("a" => "green", "yellow", "red");
+
+class classWithoutToString
+{
+}
+
+// Define error handler
+function test_error_handler($err_no, $err_msg, $filename, $linenum, $vars) {
+ if (error_reporting() != 0) {
+ // report non-silenced errors
+ echo "Error: $err_no - $err_msg, $filename($linenum)\n";
+ }
+}
+set_error_handler('test_error_handler');
+
+$value = new classWithoutToString();
+var_dump( array_diff_uassoc($array1, $array2, $value) );
+
+?>
+===DONE===
+--EXPECTF--
+*** Testing array_diff_uassoc() : usage variation ***
+Error: 4096 - Object of class classWithoutToString could not be converted to string, %s(%d)
+Error: 2 - array_diff_uassoc(): Not a valid callback , %s(%d)
+NULL
+===DONE===