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is_a> <get_parent_class
Last updated: Fri, 24 Jul 2009

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interface_exists

(PHP 5 >= 5.0.2)

interface_exists인터페이스가 정의되었는지 확인

설명

bool interface_exists ( string $interface_name [, bool $autoload= true ] )

주어진 인터페이스가 정의되었는지 확인합니다.

인수

interface_name

인터페이스명

autoload

__autoload 호출 여부, 기본값은 꺼짐

반환값

주어진 interface_name 이 정의되었으면 TRUE, 아니면 FALSE를 반환합니다.

예제

Example #1 interface_exists() 예제

<?php
// 사용하기 전에 인터페이스가 존재하는지 확인
if (interface_exists('MyInterface')) {
    class 
MyClass implements MyInterface
    
{
        
// 메쏘드
    
}
}

?>

참고



add a note add a note User Contributed Notes
interface_exists
andrey at php dot net
24-Oct-2004 11:40
As far as I remember interface_exists() was added in 5.0.2 . In 5.0.0 and 5.0.1 class_exists() used to return TRUE when asked for a existing interface. Starting 5.0.2 class_exists() doesn't do that anymore.

is_a> <get_parent_class
Last updated: Fri, 24 Jul 2009
 
 
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