ReflectionFunctionAbstract::isGenerator	ReflectionFunctionAbstract::isStatic

ReflectionFunctionAbstract	Last updated: Mon, 26 Oct 2026

ReflectionFunctionAbstract::isInternal

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

ReflectionFunctionAbstract::isInternal — Checks if is internal

public function ReflectionFunctionAbstract::isInternal(): bool

Checks whether the function is internal, as opposed to user-defined.

This function has no parameters.

true if it's internal, otherwise false