3v4l.org

run code in 300+ PHP versions simultaneously
<?php /msg NickServ IDENTIFY foo password
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.25
Parse error: syntax error, unexpected '/' in /in/fXh8Z on line 2
Process exited with code 255.
preferences:
196.6 ms | 1395 KiB | 62 Q