--TEST-- Test array_intersect_uassoc() function : usage variation - Passing class without string to callback (Handling fatal error) --FILE-- "green", "b" => "brown", "c" => "blue", "red"); $array2 = array("a" => "green", "yellow", "red"); $array3 = array("a"=>"green", "brown"); // Define error handler function test_error_handler($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'); class classWithoutToString { } $value = new classWithoutToString(); var_dump( array_intersect_uassoc($array1, $array2, $value) ); var_dump( array_intersect_uassoc($array1, $array2, $array3, $value) ); ?> ===DONE=== --EXPECTF-- *** Testing array_intersect_uassoc() : usage variation *** Error: 2 - array_intersect_uassoc() expects parameter 3 to be a valid callback, no array or string given, %s(%d) NULL Error: 2 - array_intersect_uassoc() expects parameter 4 to be a valid callback, no array or string given, %s(%d) NULL ===DONE===