1--TEST--
2Don't add array value type is key type is illegal
3--SKIPIF--
4<?php require_once('skipif.inc'); ?>
5--FILE--
6<?php
7
8function test(\SplObjectStorage $definitions = null) {
9    $argument = new stdClass;
10    $definitions[$argument] = 1;
11    $definitions[$argument] += 1;
12    $argument = [];
13    $definitions[$argument] = 1;
14    $definitions[$argument] += 1;
15}
16function test2() {
17    $a[[]] = $undef;
18}
19
20?>
21===DONE===
22--EXPECT--
23===DONE===
24