3v4l.org

run code in 300+ PHP versions simultaneously
<?php switch($a) { case 'hi': echo "hi"; break; default: echo "bye"; break; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $a in /in/7J91v on line 4 bye
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.31, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: a in /in/7J91v on line 4 bye
Output for 7.3.32 - 7.3.33
bye
preferences:
230.71 ms | 401 KiB | 247 Q