SplObjectStorage::removeAllExcept

(PHP 5 >= 5.3.6, PHP 7, PHP 8)

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

说明

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

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

Returns the number of remaining objects.

范例

示例 #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 2 notes

down

kirk at wa dot net dot ua ¶

11 years ago


You may remove all elements by passing empty SplObjectStorage

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

down

-1

hizer at hizercache dot com ¶

6 years ago


The example Kirk provided is not the best option, there's a method "removeAll" that you can pass the SplObjectStore itself, and as the name says, remove all stored objects.

add a note

官方地址：https://www.php.net/manual/en/splobjectstorage.removeallexcept.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络数据库 JAVA 面试 NoSQL C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 PHP 8.1 ADORecordSet对象 adodb手册 opcache预加载 Composer的Packagist资源 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet mysql面试题 PHP json解析（json_decode）页面工具 [原创]诡异的php-fpm超时问题 php中几种注释规范支持php7的性能采集扩展纯php实现DES以及TripleDES加密算法 php 修改图片大小 [鸟哥]PHP FFI详解 - 一种全新的PHP扩展方式

略微加速

PHP官方手册 - 互联网笔记

SplObjectStorage::removeAllExcept

说明

参数

返回值

范例

User Contributed Notes 2 notes