======================================== Rule no_null_property_initialization

Properties MUST not be explicitly initialised with null except when they have a type declaration (PHP 7.4).

Examples

Example #1

.. code-block:: diff

   --- Original
   +++ New
    <?php
    class Foo {
   -    public $bar = null;
   +    public $bar;
        public ?string $baz = null;
        public ?string $baux;
    }

Example #2

.. code-block:: diff

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

• public static $foo = null;

• public static $foo; }

Rule sets

The rule is part of the following rule sets:

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

References

• Fixer class: PhpCsFixer\\Fixer\\ClassNotation\\NoNullPropertyInitializationFixer <./../../../src/Fixer/ClassNotation/NoNullPropertyInitializationFixer.php>_
• Test class: PhpCsFixer\\Tests\\Fixer\\ClassNotation\\NoNullPropertyInitializationFixerTest <./../../../tests/Fixer/ClassNotation/NoNullPropertyInitializationFixerTest.php>_

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