.. _object-casts-are-not-supported-in-this-context:

Object casts are not supported in this context
----------------------------------------------
 
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		Object casts are not supported in this context: All cast operators are not supported in a static constant expression.
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Description
___________
 
All cast operators are not supported in a static constant expression. This applies to all casts operations: ``(int)``, ``(string)``, ``(bool)``, ``(array)``, ``(object)``, until PHP 8.5. In PHP 8.5 and later, only ``(object)`` is not supported.

They look like any other operator, such as ``+`` or ``.``, but they require data manipulations which are incompatible with constant expressions.

While it may be useless to apply a cast to a literal value, it might be useful to use it with another expression or another constant.

Example
_______

.. code-block:: php

   <?php
   class X {
       public $foo = (object) [];
   }
   ?>

Solutions
_________

+ Create a value directly with the target type.

Changed Behavior
________________

This error may appear following an evolution in behavior, in previous versions. See ` <https://php-changed-behaviors.readthedocs.io/en/latest/behavior/.html>`_.