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Rule ``lambda_not_used_import``
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Lambda must not import variables it doesn't use.

Examples
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Example #1
~~~~~~~~~~

.. code-block:: diff

   --- Original
   +++ New
    <?php
   -$foo = function() use ($bar) {};
   +$foo = function() {};

Rule sets
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The rule is part of the following rule sets:

@PhpCsFixer
  Using the `@PhpCsFixer <./../../ruleSets/PhpCsFixer.rst>`_ rule set will enable the ``lambda_not_used_import`` rule.

@Symfony
  Using the `@Symfony <./../../ruleSets/Symfony.rst>`_ rule set will enable the ``lambda_not_used_import`` rule.