3v4l.org

run code in 500+ PHP versions simultaneously
<?php $arr = []; if(!$arr) { var_dump('test'); }
Output for 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
string(4) "test"
preferences:
59.15 ms | 861 KiB | 4 Q