3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (in_array(0, array('alert', 'debug', 'error', 'info', 'notice', 'warning')) { echo 'wtf'; }
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.30
Parse error: syntax error, unexpected '{' in /in/C0oVI on line 3
Process exited with code 255.
preferences:
171.85 ms | 1399 KiB | 67 Q