cast.int

Code example

<?php declare(strict_types = 1);

$value = (int) new \stdClass();

Why is it reported?

The expression being cast to int is of a type that cannot be converted to an integer. PHP does not support casting certain types (such as objects) to int, and attempting to do so will result in an error at runtime.

In the example above, an stdClass object cannot be cast to int.

How to fix it

Extract the numeric value from the object or expression before casting:

 <?php declare(strict_types = 1);

-$value = (int) new \stdClass();
+$obj = new \stdClass();
+$obj->value = 42;
+$value = (int) $obj->value;

Or ensure the expression produces a type that can be cast to int, such as string, float, or bool:

 <?php declare(strict_types = 1);

-$value = (int) new \stdClass();
+$value = (int) '42';