3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('error_reporting', E_NOTICE); echo $x; // generates E_NOTICE ini_set('error_reporting', 'E_NOTICE'); echo $y; // nothing
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Notice: Undefined variable: x in /in/CNU2k on line 4

preferences:
170.93 ms | 402 KiB | 207 Q