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Rule dir_constant

Replaces dirname(__FILE__) expression with equivalent __DIR__ constant.

Warning

Using this rule is risky

Risky when the function dirname is overridden.

Examples

Example #1

--- Original
+++ New
 <?php
-$a = dirname(__FILE__);
+$a = __DIR__;

Rule sets

The rule is part of the following rule sets:

• @PhpCsFixer:risky

• @Symfony:risky

References

• Fixer class: PhpCsFixer\Fixer\LanguageConstruct\DirConstantFixer

• Test class: PhpCsFixer\Tests\Fixer\LanguageConstruct\DirConstantFixerTest

The test class defines officially supported behaviour. Each test case is a part of our backward compatibility promise.