class TestClass { }
$TestObj=new TestClass();
$TestObj_assigned=$TestObj;
$TestObj_Refrenced=&$TestObj;
$TestObj_cloned=clone $TestObj;
$obj=new ReflectionClass('TestClass');
var_dump($obj->isInstance($TestObj));
var_dump($obj->isInstance($TestObj_assigned));
var_dump($obj->isInstance($TestObj_Refrenced));
var_dump($obj->isInstance($TestObj_cloned));
ReflectionClass::isInstance
(PHP 5, PHP 7)
ReflectionClass::isInstance — Checks class for instance
설명
public bool ReflectionClass::isInstance
( object
$object
)Checks if an object is an instance of a class.
인수
-
object -
The object being compared to.
반환값
성공 시 TRUE를, 실패 시 FALSE를 반환합니다.
예제
Example #1 ReflectionClass::isInstance() related examples
<?php
// Example usage
$class = new ReflectionClass('Foo');
if ($class->isInstance($arg)) {
echo "Yes";
}
// Equivalent to
if ($arg instanceof Foo) {
echo "Yes";
}
// Equivalent to
if (is_a($arg, 'Foo')) {
echo "Yes";
}
?>
위 예제의 출력 예시:
Yes Yes Yes
참고
- ReflectionClass::isInterface() - Checks if the class is an interface
- Type operators (instanceof)
- Object Interfaces
- is_a() - 객체가 이 클래스나 부모 클래스 중 하나인지 확인
add a note
User Contributed Notes 1 note
dhairya lakhera ¶
8 years ago
