Memcached::isPristine

(PECL memcached >= 2.0.0)

Memcached::isPristine — Check if the instance was recently created

说明

public Memcached::isPristine(): bool

Memcached::isPristine() checks if the Memcache instance was recently created.

参数

此函数没有参数。

返回值

Returns the true if instance is recently created, false otherwise.

参见

Memcached::isPersistent() - Check if a persitent connection to memcache is being used

add a note

User Contributed Notes 2 notes

down

gerben at gerbs dot net ¶

6 years ago


How is the return value determined? What is the definition of 'recently'? Does this function return true if the item was stored using the current connection?

down

vick dot qi at yahoo dot com ¶

5 years ago


From the source code of contructor, the "recently" means the connection to server of the instence is recently created, that is the instance was created without a persistent_id parameter or the first to use the persistent_id.

For instance, the gives a bool(true):

$memcached = new Memcached();
$isPristine = $memcached->isPristine();
var_dump($isPristine);

This also gives a bool(true):

$memcached = new Memcached('pid1');
$isPristine = $memcached->isPristine();
var_dump($isPristine);

while this gives a bool(false):

$memcached = new Memcached('pid1');
$memcached2 = new Memcached('pid1');
$isPristine = $memcached2->isPristine();
var_dump($isPristine);

add a note

官方地址：https://www.php.net/manual/en/memcached.ispristine.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 科技开发编程 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL C/C++ 面试数据库 Golang Git 算法正则表达式操作系统 Redis 互联网 MySql JavaScript 运维软件架构设计 Mac OS 国际 TCP/IP Excel Vim Socket Windows Oracle VR MongoDB 运营 Python MemCache 商业硬件电子设计 nginx 娱乐摄影游戏 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] inet_pton/inet_ntop IP地址转换函数 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 PHPMailer设置utf8 PHPMailer字符集CharSet 如何在Composer中为GitLab实例设置访问令牌 array_multisort() 多字段排序 laravel框架查看sql语句方式 [原创]诡异的php-fpm超时问题 PHP获取指定函数定义在哪个文件中及行号利用php soap实现web service php设置cookie为httponly防止xss攻击 PHP5 扩展SOAP 调用 webservice PHP-FPM进程数的设定 PHP7添加redis扩展利用PHP SOAP实现WEB SERVICE PHP - mysql_real_escape_string()与mysql_escape_string() 的区别 ADORecordSet对象 PHPstorm 里面Terminal 不能使用 esc键吗退出编辑模式吗纯php实现DES以及TripleDES加密算法

略微加速

PHP官方手册 - 互联网笔记

Memcached::isPristine

说明

参数

返回值

参见

User Contributed Notes 2 notes