update : 2015.11.03
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Removes objects contained in another storage from the current storage
SplObjectStorage
PHP Manual

SplObjectStorage::removeAll

(PHP 5 >= 5.3.0)

SplObjectStorage::removeAll — Removes objects contained in another storage from the current storage

설명

public void SplObjectStorage::removeAll ( SplObjectStorage $storage )

Removes objects contained in another storage from the current storage.

인수

storage

The storage containing the elements to remove.

반환값

값을 반환하지 않습니다.

예제

Example #1 SplObjectStorage::removeAll() example

<?php
$o1 = new StdClass;
$o2 = new StdClass;
$a = new SplObjectStorage();
$a[$o1] = "foo";

$b = new SplObjectStorage();
$b[$o1] = "bar";
$b[$o2] = "gee";

var_dump(count($b));
$b->removeAll($a);
var_dump(count($b));
?>

위 예제의 출력 예시:

int(2)
int(1)

참고

SplObjectStorage
PHP Manual