3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function test(int $number):void { return null; } echo test(123);
based on 7jj2c
Output for 7.1.0 - 7.2.6
Fatal error: A void function must not return a value (did you mean "return;" instead of "return null;"?) in /in/oUneO on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Fatal error: Uncaught TypeError: Return value of test() must be an instance of void, null returned in /in/oUneO:3 Stack trace: #0 /in/oUneO(6): test(123) #1 {main} thrown in /in/oUneO on line 3
Process exited with code 255.
Output for 5.3.20 - 5.6.21
Parse error: syntax error, unexpected ':', expecting '{' in /in/oUneO on line 2
Process exited with code 255.