3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f(): null { return null; }
Output for 8.0.0 - 8.0.8
Fatal error: Null can not be used as a standalone type in /in/LL9UI on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.29, 7.4.0 - 7.4.21
Fatal error: Cannot use 'null' as class name as it is reserved in /in/LL9UI on line 3
Process exited with code 255.
preferences:
182.05 ms | 1399 KiB | 66 Q