ReflectionParameter::isOptional	ReflectionParameter::isPromoted

ReflectionParameter	Last updated: Mon, 26 Oct 2026

ReflectionParameter::isPassedByReference

(PHP 5, PHP 7, PHP 8)

ReflectionParameter::isPassedByReference — Checks if passed by reference

public function ReflectionParameter::isPassedByReference(): bool

Checks if the parameter is passed in by reference.

This function has no parameters.

true if the parameter is passed in by reference, otherwise false