3v4l.org

run code in 300+ PHP versions simultaneously
<?php phpversion() >= "7.0.1" or die(); $x = 'data'; echo $x['a'];
Output for 7.0.1 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0
Warning: Illegal string offset 'a' in /in/WJ0jO on line 5 d
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0
preferences:
79.48 ms | 402 KiB | 46 Q