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<?php function returns_null(): void { return null; // Fatal error: A void function must not return a value } function returns_null2(): void { return ; // Fatal error: A void function must not return a value } try { returns_null2(); returns_null(); echo "OK!"; } catch (Error $e) { echo "Error:"; var_dump($e); }
based on dvB65
Output for 7.1.0 - 7.2.0
Fatal error: A void function must not return a value (did you mean "return;" instead of "return null;"?) in /in/nPILh on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Error:object(TypeError)#1 (7) { ["message":protected]=> string(74) "Return value of returns_null2() must be an instance of void, none returned" ["string":"Error":private]=> string(0) "" ["code":protected]=> int(0) ["file":protected]=> string(9) "/in/nPILh" ["line":protected]=> int(8) ["trace":"Error":private]=> array(1) { [0]=> array(4) { ["file"]=> string(9) "/in/nPILh" ["line"]=> int(13) ["function"]=> string(13) "returns_null2" ["args"]=> array(0) { } } } ["previous":"Error":private]=> NULL }
Output for 5.3.22 - 5.6.28
Parse error: syntax error, unexpected ':', expecting '{' in /in/nPILh on line 3
Process exited with code 255.