3v4l.org

run code in 300+ PHP versions simultaneously
<?php function(&$_SESSION) { var_dump($_SESSION); }
Output for 5.4.0 - 5.4.25
Fatal error: Cannot re-assign auto-global variable _SESSION in /in/cqTGf on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected $end in /in/cqTGf on line 4
Process exited with code 255.
preferences:
170.63 ms | 1399 KiB | 62 Q