3v4l.org

run code in 300+ PHP versions simultaneously
<?php function x(): true { return true; }
Output for 8.2.22 - 8.2.29, 8.3.5 - 8.3.25, 8.4.1 - 8.4.12
Output for 7.4.0 - 7.4.32, 8.0.1 - 8.0.24, 8.1.0 - 8.1.33
Fatal error: Cannot use 'true' as class name as it is reserved in /in/jvaCB on line 3
Process exited with code 255.
preferences:
65.9 ms | 407 KiB | 5 Q