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Rule ``no_whitespace_in_blank_line``

doc/rules/whitespace/no_whitespace_in_blank_line.rst

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==================================== Rule no_whitespace_in_blank_line

Remove trailing whitespace at the end of blank lines.

Examples

Example #1


.. code-block:: diff

   --- Original
   +++ New
    <?php
   -   
   +
    $a = 1;

Rule sets
---------

The rule is part of the following rule sets:

- `@PER <./../../ruleSets/PER.rst>`_ *(deprecated)*
- `@PER-CS <./../../ruleSets/PER-CS.rst>`_
- `@PER-CS1.0 <./../../ruleSets/PER-CS1.0.rst>`_ *(deprecated)*
- `@PER-CS1x0 <./../../ruleSets/PER-CS1x0.rst>`_
- `@PER-CS2.0 <./../../ruleSets/PER-CS2.0.rst>`_ *(deprecated)*
- `@PER-CS2x0 <./../../ruleSets/PER-CS2x0.rst>`_
- `@PER-CS3.0 <./../../ruleSets/PER-CS3.0.rst>`_ *(deprecated)*
- `@PER-CS3x0 <./../../ruleSets/PER-CS3x0.rst>`_
- `@PhpCsFixer <./../../ruleSets/PhpCsFixer.rst>`_
- `@PSR12 <./../../ruleSets/PSR12.rst>`_
- `@Symfony <./../../ruleSets/Symfony.rst>`_

References
----------

- Fixer class: `PhpCsFixer\\Fixer\\Whitespace\\NoWhitespaceInBlankLineFixer <./../../../src/Fixer/Whitespace/NoWhitespaceInBlankLineFixer.php>`_
- Test class: `PhpCsFixer\\Tests\\Fixer\\Whitespace\\NoWhitespaceInBlankLineFixerTest <./../../../tests/Fixer/Whitespace/NoWhitespaceInBlankLineFixerTest.php>`_

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