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26 lines
515 B
Markdown
26 lines
515 B
Markdown
# AssignmentToVoid
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Emitted when assigning from a function that returns `void`:
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```php
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<?php
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function foo() : void {}
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$a = foo();
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```
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## Why this is bad
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Though `void`-returning functions are treated by PHP as returning `null` (so this on its own does not lead to runtime errors), `void` is a concept more broadly in programming languages which is not designed for assignment purposes.
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## How to fix
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You should just be able to remove the assignment entirely:
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```php
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<?php
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function foo() : void {}
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foo();
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```
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