ReflectionParameter::isCallable	ReflectionParameter::isDefaultValueConstant

ReflectionParameter	Last updated: Mon, 26 Oct 2026

ReflectionParameter::isDefaultValueAvailable

(PHP 5 >= 5.0.3, PHP 7, PHP 8)

ReflectionParameter::isDefaultValueAvailable — Checks if a default value is available

public function ReflectionParameter::isDefaultValueAvailable(): bool

Checks if a default value for the parameter is available.

This function has no parameters.

true if a default value is available, otherwise false