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<?php function test(int $number):void { return null; } echo test(123);
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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 5.5.24 - 5.5.35, 5.6.8 - 5.6.21
Parse error: syntax error, unexpected ':', expecting '{' in /in/oUneO on line 2
Process exited with code 255.

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