Error Identifier: staticProperty.deprecatedClass

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);

/** @deprecated Use NewConfig instead */
class OldConfig
{
	public static string $value = 'default';
}

echo OldConfig::$value;

Why is it reported? #

This error is reported by the phpstan-deprecation-rules extension.

A static property is accessed on a class that is marked as @deprecated. Deprecated classes are planned for removal in a future version, and code should not rely on them.

How to fix it #

Use the recommended replacement class:

 <?php declare(strict_types = 1);
 
-echo OldConfig::$value;
+echo NewConfig::$value;

How to ignore this error #

You can use the identifier staticProperty.deprecatedClass to ignore this error using a comment:

// @phpstan-ignore staticProperty.deprecatedClass
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: staticProperty.deprecatedClass

Rules that report this error #

PHPStan\Rules\Deprecations\RestrictedDeprecatedClassNameUsageExtension [1] phpstan/phpstan-deprecation-rules
PHPStan\Rules\Deprecations\RestrictedDeprecatedPropertyUsageExtension [1] [2] phpstan/phpstan-deprecation-rules

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