Rule `void_return`¶

Add void return type to functions with missing or empty return statements, but priority is given to @return annotations.

Warning¶

Modifies the signature of functions.

--- Original
+++ New
 <?php
-function foo($a) {};
+function foo($a): void {};

The rule is part of the following rule sets:

The test class defines officially supported behaviour. Each test case is a part of our backward compatibility promise.