3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'aaa'; $b = "bbb";
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
preferences:
42.48 ms | 406 KiB | 5 Q