3v4l.org

run code in 300+ PHP versions simultaneously
<?php class string { }
Output for 7.0.0 - 7.0.12
Fatal error: Cannot use 'string' as class name as it is reserved in /in/FVsYO on line 3
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
preferences:
195.65 ms | 1395 KiB | 87 Q