Error Identifier: static.this

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Every error reported by PHPStan has an error identifier. Here’s a list of all error identifiers. In PHPStan Pro you can see the error identifier next to each error and filter errors by their identifiers.

Code example #

<?php declare(strict_types = 1);

function foo(): void {
	static $this;
}

Why is it reported? #

PHP does not allow $this to be declared as a static variable. The $this pseudo-variable is reserved for referring to the current object instance inside class methods, and it cannot be used as a static local variable. This is a compile-time error in PHP.

How to fix it #

Use a different variable name:

 function foo(): void {
-	static $this;
+	static $instance;
 }

Non-ignorable error #

This error cannot be ignored using @phpstan-ignore or the ignoreErrors configuration. Non-ignorable errors indicate code that would cause a crash or a fatal error at runtime, or a fundamental problem in the analysed code that must be addressed.

Rules that report this error #

PHPStan\Rules\Variables\ThisInStaticStatementRule [1]

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