You can configure this rule using the following options:
``allow_single_line_anonymous_functions``,
``allow_single_line_empty_anonymous_classes``,
``anonymous_classes_opening_brace``, ``anonymous_functions_opening_brace``,
``classes_opening_brace``, ``control_structures_opening_brace``,
``functions_opening_brace``.

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

``allow_single_line_anonymous_functions``

Allow anonymous classes to have opening and closing braces on the same line.

Allowed types: ``bool``

Default value: ``true``

``anonymous_classes_opening_brace``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The position of the opening brace of anonymous classes‘ body.

Allowed values: ``'next_line_unless_newline_at_signature_end'`` and ``'same_line'``

Default value: ``'same_line'``

``anonymous_functions_opening_brace``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The position of the opening brace of anonymous functions‘ body.

Allowed values: ``'next_line_unless_newline_at_signature_end'`` and ``'same_line'``

Default value: ``'same_line'``

``classes_opening_brace``
~~~~~~~~~~~~~~~~~~~~~~~~~

The position of the opening brace of classes‘ body.

Allowed values: ``'next_line_unless_newline_at_signature_end'`` and ``'same_line'``

Default value: ``'next_line_unless_newline_at_signature_end'``

``control_structures_opening_brace``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The position of the opening brace of control structures‘ body.

Allowed values: ``'next_line_unless_newline_at_signature_end'`` and ``'same_line'``

Default value: ``'same_line'``

``functions_opening_brace``
~~~~~~~~~~~~~~~~~~~~~~~~~~~

The position of the opening brace of functions‘ body.

Allowed values: ``'next_line_unless_newline_at_signature_end'`` and ``'same_line'``

Default value: ``'next_line_unless_newline_at_signature_end'``

Examples
--------

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

*Default* configuration.

.. code-block:: diff

   --- Original
   +++ New
    <?php
   -class Foo {
   +class Foo
   +{
    }

   -function foo() {
   +function foo()
   +{
    }

   -$foo = function()
   -{
   +$foo = function() {
    };

   -if (foo())
   -{
   +if (foo()) {
        bar();
    }

   -$foo = new class
   -{
   +$foo = new class {
    };

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

With configuration: ``['control_structures_opening_brace' => 'next_line_unless_newline_at_signature_end']``.

.. code-block:: diff

   --- Original
   +++ New
    <?php
   -if (foo()) {
   +if (foo())
   +{
        bar();
    }

Example #3
~~~~~~~~~~

With configuration: ``['functions_opening_brace' => 'same_line']``.

.. code-block:: diff

   --- Original
   +++ New
    <?php
   -function foo()
   -{
   +function foo() {
    }

Example #4
~~~~~~~~~~

With configuration: ``['anonymous_functions_opening_brace' => 'next_line_unless_newline_at_signature_end']``.

.. code-block:: diff

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

Example #5
~~~~~~~~~~

With configuration: ``['classes_opening_brace' => 'same_line']``.

.. code-block:: diff

   --- Original
   +++ New
    <?php
   -class Foo
   -{
   +class Foo {
    }

Example #6
~~~~~~~~~~

With configuration: ``['anonymous_classes_opening_brace' => 'next_line_unless_newline_at_signature_end']``.

.. code-block:: diff

   --- Original
   +++ New
    <?php
   -$foo = new class {
   +$foo = new class
   +{
    };

Example #7
~~~~~~~~~~

With configuration: ``['allow_single_line_empty_anonymous_classes' => true]``.

.. code-block:: diff

   --- Original
   +++ New
    <?php
    $foo = new class { };
   -$bar = new class { private $baz; };
   +$bar = new class {
   +private $baz;
   +};

Example #8
~~~~~~~~~~

With configuration: ``['allow_single_line_anonymous_functions' => true]``.

.. code-block:: diff

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

Rule sets
---------

The rule is part of the following rule sets:

- `@PER <./../../ruleSets/PER.rst>`_ *(deprecated)* with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PER-CS <./../../ruleSets/PER-CS.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PER-CS1.0 <./../../ruleSets/PER-CS1.0.rst>`_ *(deprecated)* with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PER-CS1x0 <./../../ruleSets/PER-CS1x0.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PER-CS2.0 <./../../ruleSets/PER-CS2.0.rst>`_ *(deprecated)* with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PER-CS2x0 <./../../ruleSets/PER-CS2x0.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PER-CS3.0 <./../../ruleSets/PER-CS3.0.rst>`_ *(deprecated)* with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PER-CS3x0 <./../../ruleSets/PER-CS3x0.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PhpCsFixer <./../../ruleSets/PhpCsFixer.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => true, 'allow_single_line_empty_anonymous_classes' => true]``

- `@PSR2 <./../../ruleSets/PSR2.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => false]``

- `@PSR12 <./../../ruleSets/PSR12.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => false, 'allow_single_line_empty_anonymous_classes' => true]``

- `@Symfony <./../../ruleSets/Symfony.rst>`_ with config:

  ``['allow_single_line_anonymous_functions' => true, 'allow_single_line_empty_anonymous_classes' => true]``

References
----------

- Fixer class: `PhpCsFixer\\Fixer\\Basic\\BracesPositionFixer <./../../../src/Fixer/Basic/BracesPositionFixer.php>`_
- Test class: `PhpCsFixer\\Tests\\Fixer\\Basic\\BracesPositionFixerTest <./../../../tests/Fixer/Basic/BracesPositionFixerTest.php>`_

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