cast.useless

Code example

<?php declare(strict_types = 1);

function doFoo(int $value): void
{
    $result = (int) $value;
}

Why is it reported?

The value being cast is already of the target type, making the cast redundant. In the example above, $value is already an int, so casting it to int with (int) has no effect.

This rule is part of phpstan-strict-rules and helps identify unnecessary type casts that add clutter to the code without changing behaviour.

How to fix it

Remove the unnecessary cast:

 <?php declare(strict_types = 1);

 function doFoo(int $value): void
 {
-    $result = (int) $value;
+    $result = $value;
 }