[edit] Last updated: Fri, 24 May 2013

SplObjectStorage::removeAllExcept

(PHP 5 >= 5.3.6)

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

说明

public void SplObjectStorage::removeAllExcept ( SplObjectStorage $storage )

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

参数

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

返回值

没有返回值。

范例

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));
?>

以上例程的输出类似于：

bool(false)
bool(true)

add a note User Contributed Notes SplObjectStorage::removeAllExcept - [1 notes]

down

kirk at wa dot net dot ua ¶

1 year ago


You may remove all elements by passing empty SplObjectStorage



$splStorage->removeAllExcept(new SplObjectStorage());

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