.. _static-cannot-be-used-anymore-in-callable-arrays:

static Cannot Be Used Anymore In Callable Arrays
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		static Cannot Be Used Anymore In Callable Arrays: PHP supports a callable syntax, based on array: it must be an array of two elements, where the index 0 is the object or the class, and the index 1 is the method name.
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	:og:title: static Cannot Be Used Anymore In Callable Arrays
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	:og:description: PHP supports a callable syntax, based on array: it must be an array of two elements, where the index 0 is the object or the class, and the index 1 is the method name
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PHP supports a callable syntax, based on array: it must be an array of two elements, where the index 0 is the object or the class, and the index 1 is the method name.



Until PHP 8.2, it was possible to use the keyword ``static``, to make the callable dependent on the context of usage of the callable. 



In the example, static would be calling the static method ``replace``, in A, or in any other class where it is used. 



Since PHP 8.2, this is a deprecated feature, and it will be removed in PHP 9.

PHP code
________
.. code-block:: php

   <?php
   class A
   {
       public static function work($it) {
   		return preg_replace_callback('~\w+~', array('static', 'static::replace'), $it);
       }
       
       public static function replace($a) {
       	return 'a';
       }
   }
   
   echo a::work('abc');
   
   ?>

Before
______
.. code-block:: output

   a

After
______
.. code-block:: output

   PHP Deprecated:  Use of "static" in callables is deprecated
   
   Deprecated: Use of "static" in callables is deprecated
   PHP Deprecated:  Callables of the form ["A", "static::replace"] are deprecated
   
   Deprecated: Callables of the form ["A", "static::replace"] are deprecated
   a


PHP version change
__________________
This behavior was deprecated in 8.2

This behavior changed in 9.0


Error Messages
______________

  + `Use of "static" in callables is deprecated <https://php-errors.readthedocs.io/en/latest/messages/use-of-%22static%22-in-callables-is-deprecated.html>`_


Analyzer
_________

  + `Functions/DeprecatedCallable <https://exakat.readthedocs.io/en/latest/Reference/Rules/Functions/DeprecatedCallable.html>`_