3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test($_FILES) { echo 'hi'; }
Output for 5.4.0 - 5.4.38
Fatal error: Cannot re-assign auto-global variable _FILES in /in/XomJR on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
preferences:
196.83 ms | 1395 KiB | 75 Q