Cannot use the static modifier on a parameter

Description

It is not possible to use static as a type for a parameter. It is possible for a return value, but not for parameters, not properties.

Example

<?php

    class X {
        function foo(static $argument) {

        }
    }

?>

Solutions

• Use self pseudo-type.

• Use the name of the class as type.

• Use one of the interface as type.

Changed Behavior

This error may appear following an evolution in behavior, in previous versions. See ` <https://php-changed-behaviors.readthedocs.io/en/latest/behavior/.html>`_.