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

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36.78 ms | 410 KiB | 5 Q