=================================== Rule no_useless_concat_operator

There should not be useless concat operations.

Warning

This rule is CONFIGURABLE

You can configure this rule using the following option:
``juggle_simple_strings``.

Configuration
-------------

``juggle_simple_strings``

Allow for simple string quote juggling if it results in more concat-operations merges.

Allowed types: bool

Default value: false

Examples

Example #1

*Default* configuration.

.. code-block:: diff

   --- Original
   +++ New
    <?php
   -$a = 'a'.'b';
   +$a = 'ab';

Example #2

With configuration: ['juggle_simple_strings' => true].

.. code-block:: diff

--- Original +++ New <?php -$a = 'a'."b"; +$a = "ab";

Rule sets

The rule is part of the following rule sets:

• @PhpCsFixer <./../../ruleSets/PhpCsFixer.rst>_
• @Symfony <./../../ruleSets/Symfony.rst>_

References

• Fixer class: PhpCsFixer\\Fixer\\Operator\\NoUselessConcatOperatorFixer <./../../../src/Fixer/Operator/NoUselessConcatOperatorFixer.php>_
• Test class: PhpCsFixer\\Tests\\Fixer\\Operator\\NoUselessConcatOperatorFixerTest <./../../../tests/Fixer/Operator/NoUselessConcatOperatorFixerTest.php>_

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