3v4l.org

run code in 300+ PHP versions simultaneously
<?php sort(array("123", "456f", "89"));
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.30, 5.6.8 - 5.6.15
Fatal error: Only variables can be passed by reference in /in/AvD5V on line 3
Process exited with code 255.
preferences:
71.77 ms | 402 KiB | 65 Q