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Rule ``phpdoc_no_empty_return``
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``@return void`` and ``@return null`` annotations should be omitted from PHPDoc.

Examples
--------

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

.. code-block:: diff

   --- Original
   +++ New
   @@ -1,5 +1,4 @@
    <?php
    /**
   - * @return null
    */
    function foo() {}

Example #2
~~~~~~~~~~

.. code-block:: diff

   --- Original
   +++ New
   @@ -1,5 +1,4 @@
    <?php
    /**
   - * @return void
    */
    function foo() {}

Rule sets
---------

The rule is part of the following rule set:

@PhpCsFixer
  Using the ``@PhpCsFixer`` rule set will enable the ``phpdoc_no_empty_return`` rule.
