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Error Identifier: magicConstant.outOfNamespace

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);

echo __NAMESPACE__;

Why is it reported? #

The magic constant __NAMESPACE__ is used outside of any namespace declaration, where its value is always an empty string. This usually indicates a logic error, as the code likely expects the constant to contain a meaningful namespace value.

How to fix it #

Place the code inside a namespace declaration:

-<?php declare(strict_types = 1);
-+<?php declare(strict_types = 1);
+
+namespace App;
+
 echo __NAMESPACE__;

Or use the expected namespace string directly if the namespace is known.

How to ignore this error #

You can use the identifier magicConstant.outOfNamespace to ignore this error using a comment:

// @phpstan-ignore magicConstant.outOfNamespace
codeThatProducesTheError();

You can also use only the identifier key to ignore all errors of the same type in your configuration file in the ignoreErrors parameter:

parameters:
	ignoreErrors:
		-
			identifier: magicConstant.outOfNamespace

Rules that report this error #

• PHPStan\Rules\Constants\MagicConstantContextRule [1]

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