3v4l.org

run code in 500+ PHP versions simultaneously
<?php use int as I; function foo(I $v) {}
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.5
Fatal error: Cannot use 'int' as class name as it is reserved in /in/nNOgL on line 5
Process exited with code 255.
preferences:
33.99 ms | 1136 KiB | 6 Q