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Checks if function is disabled ReflectionFunction::isDisabled (PHP 5 >= 5.2.0, PHP 7, PHP 8) ReflectionFunction::isDisabled — Checks if function is disabled
In PHP 8, disabled functions are not added to PHP's internal functions table. This makes PHP behave as if disabled functions are not defined at all. Related to this change, there are two new deprecations in PHP 8. ReflectionFunction::isDisabled() is deprecated ReflectionFunction::isDisabled() method is deprecated because it no longer provides any useful information to the caller. Deprecated ...
Simple usage example of `ReflectionFunction::isDisabled ()`. The `ReflectionFunction::isDisabled` function in PHP is used to determine whether a specific function has been disabled or not. It provides a way to check if a function is disabled due to being in the disable_functions list in the php.ini configuration file, or if it has been disabled using the `disable_functions` directive at runtime.
The active list comes from the effective disable_functions value resolved when a PHPSAPI starts. The directive is INI_SYSTEM only, it accepts a comma-delimited list of internal function names, and PHP 8+ removes disabled internal functions from the function table instead of leaving the older invocation warning behavior in place. Reading the resolved value through php -i or ini_get ('disable ...
Jan 1, 2025 · In the ever-evolving world of PHP development, reflection stands as a powerful technique that transforms how developers interact with code. This comprehensive guide will demystify PHP reflection ...
The PHP Reflection API is a powerful tool that allows developers to inspect and manipulate the structure of classes, interfaces, functions, methods, and properties at runtime. This can be particularly useful when you need to dynamically analyze and act upon code elements without having prior knowledge of their details.
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This is a point-in-time snapshot of the API documentation from January 2026.
