3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = new stdClass(); list($arr->a, $arr->b) = array('Hello', 'world!'); var_dump($arr);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
object(stdClass)#1 (2) { ["a"]=> string(5) "Hello" ["b"]=> string(6) "world!" }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
object(stdClass)#1 (2) { ["b"]=> string(6) "world!" ["a"]=> string(5) "Hello" }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
object(stdClass)(2) { ["b"]=> string(6) "world!" ["a"]=> string(5) "Hello" }

preferences:
203.53 ms | 402 KiB | 347 Q