3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Null {}
Output for 7.0.0 - 7.0.4
Fatal error: Cannot use 'Null' as class name as it is reserved in /in/J9sue on line 1
Process exited with code 255.
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
preferences:
154.64 ms | 1334 KiB | 6 Q