3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($_FILES) { echo "Foo"; }
Output for 5.4.0 - 5.4.20
Fatal error: Cannot re-assign auto-global variable _FILES in /in/LJcEl on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
preferences:
176.83 ms | 1395 KiB | 58 Q