• Install now

Rule static_lambda

Lambdas not (indirectly) referencing $this must be declared static.

Warning

Using this rule is risky

Risky when using ->bindTo on lambdas without referencing to $this.

Examples

Example #1

--- Original
+++ New
 <?php
-$a = function () use ($b)
+$a = static function () use ($b)
 {   echo $b;
 };

Rule sets

The rule is part of the following rule set:

• @PhpCsFixer:risky

References

• Fixer class: PhpCsFixer\Fixer\FunctionNotation\StaticLambdaFixer

• Test class: PhpCsFixer\Tests\Fixer\FunctionNotation\StaticLambdaFixerTest

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