SplObjectStorage::removeAllExcept

(PHP 5 >= 5.3.6, PHP 7)

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

说明

public SplObjectStorage::removeAllExcept ( SplObjectStorage $storage ) : void

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)

相关文章
php deque removes all values from the dequephp map creates a new map using values from the current instance and another mapphp set removes all given values from the setphp set creates a new set using values from the current instance and another setphp eventbuffer move all data from a buffer provided to the current instance of eventbufferphp eventbuffer moves all data from source buffer to the front of current bufferphp eventdnsbase removes all current search suffixesphp eventhttprequest removes all output headers from the header list of the requestphp snmp 函数 fetch all the snmp objects from an agentphp snmp 函数 fetch all the snmp objects from an agentphp imagick adds or removes a profile from an imagephp splobjectstorage adds all objects from another storagephp splobjectstorage returns the number of objects in the storagephp splobjectstorage returns the current storage entryphp splobjectstorage removes an object from the storagephp splobjectstorage calculate a unique identifier for the contained objectsphp splobjectstorage removes an object from the storagephp splobjectstorage removes objects contained in another storage from the current storagephp splobjectstorage removes all objects except for those contained in another storage from the current storagephp splobjectstorage unserializes a storage from its string representation
关注编程学问公众号