3v4l.org

run code in 300+ PHP versions simultaneously
<?php { $foo = 'hallo'; echo $foo; }
Output for 5.6.0 - 5.6.24, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
hallo

preferences:
182.05 ms | 404 KiB | 204 Q