(PHP 5, PHP 7, PHP 8)
ReflectionClass::isInternal — Checks if class is defined internally by an extension, or the core
Checks if the class is defined internally by an extension, or the core, as opposed to user-defined.
This function has no parameters.
Returns true on success or false on failure.
Example #1 Basic usage of ReflectionClass::isInternal()
<?php
$internalclass = new ReflectionClass('ReflectionClass');
class Apple {}
$userclass = new ReflectionClass('Apple');
var_dump($internalclass->isInternal());
var_dump($userclass->isInternal());
?>
The above example will output:
bool(true) bool(false)