3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = []; if(!$arr) { var_dump('test'); }
Output for 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
string(4) "test"
preferences:
33.35 ms | 834 KiB | 4 Q