=================================== Rule lowercase_static_reference

Class static references self, static and parent MUST be in lower case.

Examples

Example #1

.. code-block:: diff

   --- Original
   +++ New
    <?php
    class Foo extends Bar
    {
        public function baz1()
        {
   -        return STATIC::baz2();
   +        return static::baz2();
        }

        public function baz2($x)
        {
   -        return $x instanceof Self;
   +        return $x instanceof self;
        }

   -    public function baz3(PaRent $x)
   +    public function baz3(parent $x)
        {
            return true;
        }
    }

Example #2

.. code-block:: diff

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

• public function baz(?self $x) : SELF

• public function baz(?self $x) : self { return false; } }

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\\Casing\\LowercaseStaticReferenceFixer <./../../../src/Fixer/Casing/LowercaseStaticReferenceFixer.php>_
• Test class: PhpCsFixer\\Tests\\Fixer\\Casing\\LowercaseStaticReferenceFixerTest <./../../../tests/Fixer/Casing/LowercaseStaticReferenceFixerTest.php>_

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