--TEST-- array_walk() tests --FILE-- getMessage()); } echo "Done\n"; ?> --EXPECTF-- Warning: array_walk() expects at least 2 parameters, 0 given in %s on line %d NULL Warning: array_walk(): The argument should be an array in %s on line %d bool(false) bool(true) int(1) int(0) string(4) "data" int(2) int(1) string(4) "data" bool(true) string(4) "data" Done