# The ReflectionType class

(PHP 7)

## Introduction

The ReflectionType class reports information about a function's return type.

## Class synopsis

ReflectionType {
/* Methods */
public allowsNull ( ) : bool
public isBuiltin ( ) : bool
public __toString ( ) : string
}

## Table of Contents

- ReflectionType::allowsNull — Checks if null is allowed
- ReflectionType::isBuiltin — Checks if it is a built-in type
- ReflectionType::__toString — To string