SplObjectStorage::removeAllExcept

(PHP 5 >= 5.3.6)

SplObjectStorage::removeAllExcept — Removes all objects except for those contained in another storage from the current storage

설명

public void SplObjectStorage::removeAllExcept ( SplObjectStorage $storage )

Removes all objects except for those contained in another storage from the current storage.

인수

storage: The storage containing the elements to retain in the current storage.

반환값

값을 반환하지 않습니다.

예제

Example #1 SplObjectStorage::removeAllExcept() example


<?php
$a = (object) 'a'; 
$b = (object) 'b'; 
$c = (object) 'c'; 

$foo = new SplObjectStorage;
$foo->attach($a);
$foo->attach($b);

$bar = new SplObjectStorage;
$bar->attach($b);
$bar->attach($c);

$foo->removeAllExcept($bar);
var_dump($foo->contains($a));
var_dump($foo->contains($b));
?>

위 예제의 출력 예시:

bool(false)
bool(true)