ReflectionType::allowsNull
(PHP 7)
ReflectionType::allowsNull — Checks if null is allowed
설명
public bool ReflectionType::allowsNull
( void
)
Checks whether the parameter allows NULL.
인수
이 함수는 인수가 없습니다.
반환값
TRUE if NULL is allowed, otherwise FALSE
예제
Example #1 ReflectionType::allowsNull() example
<?php
function someFunction(string $param, StdClass $param2 = null) {}
$reflectionFunc = new ReflectionFunction('someFunction');
$reflectionParams = $reflectionFunc->getParameters();
var_dump($reflectionParams[0]->getType()->allowsNull());
var_dump($reflectionParams[1]->getType()->allowsNull());
위 예제의 출력 예시:
bool(false) bool(true)
참고
- ReflectionType::isBuiltin() - Checks if it is a built-in type
- ReflectionType::__toString() - To string
- ReflectionParameter::getType() - Gets a parameter's type
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