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15 Keys Accelerate (v3.54.0) edition

Rule static_lambda

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


Using this rule is risky

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


Example #1

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

Rule sets

The rule is part of the following rule set:


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