3v4l.org

run code in 300+ PHP versions simultaneously
<?php function should_return_nothing(): void { return null; } $x = should_return_nothing();
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: A void function must not return a value (did you mean "return;" instead of "return null;"?) in /in/VNrCh on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Fatal error: Uncaught TypeError: Return value of should_return_nothing() must be an instance of void, null returned in /in/VNrCh:4 Stack trace: #0 /in/VNrCh(7): should_return_nothing() #1 {main} thrown in /in/VNrCh on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected ':', expecting '{' in /in/VNrCh on line 3
Process exited with code 255.

preferences:
174.99 ms | 401 KiB | 179 Q