3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = []; var_dump($s['test'] ??);
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.15
Parse error: syntax error, unexpected '?' in /in/GYXAN on line 4
Process exited with code 255.
preferences:
164.21 ms | 1395 KiB | 22 Q