Error Identifier: constant.deprecated

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.

This error is reported by phpstan/phpstan-deprecation-rules.

Code example #

<?php declare(strict_types = 1);

/**
 * @deprecated Use NEW_LIMIT instead.
 */
define('OLD_LIMIT', 100);

echo OLD_LIMIT;

Why is it reported? #

The code uses a constant that has been marked as deprecated via a @deprecated PHPDoc tag. Deprecated constants are planned for removal in a future version and should no longer be relied upon.

How to fix it #

Replace the deprecated constant with its recommended replacement:

 <?php declare(strict_types = 1);
 
-echo OLD_LIMIT;
+echo NEW_LIMIT;

How to ignore this error #

You can use the identifier constant.deprecated to ignore this error using a comment:

// @phpstan-ignore constant.deprecated
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: constant.deprecated

Rules that report this error #

PHPStan\Rules\Deprecations\FetchingDeprecatedConstRule [1] phpstan/phpstan-deprecation-rules

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