Home Backend Development PHP Tutorial php内存储器缓存技术

php内存储器缓存技术

Jun 13, 2016 pm 12:53 PM
data gt memcache memcached

php内存缓存技术

在很多场合,都会听到 memcached 这个名字,但是只是听过,并没有用过或实际了解过,只知道它是一个很不错的东东。这里简单介绍一下,memcached 是高效、快速的分布式内存对象缓存系统,主要用于加速 WEB 动态应用程序。 最近新学习了下memcached

首先是下载 memcached,windows和linux版的都有,运行 memcached 守护程序很简单,只需一个命令行即可,不需要修改任何配置文件:

/usr/bin/memcached -d -m 128 -l 192.168.1.1 -p 11211 -u httpd

参数解释:

-d 以守护程序(daemon)方式运行 memcached;

-m 设置PHP内存缓存技术memcached 可以使用的内存大小,单位为 M;

-l 设置监听的 IP 地址,如果是本机的话,通常可以不设置此参数;

-p 设置监听的端口,默认为 11211,所以也可以不设置此参数;

-u 指定用户。

<?php

/**
 *
 * @author changxiaoqiang
 *
 */
$memcache = new Memcache;
$memcache->connect('localhost', 11211) or die("Could not connect");
// 连接memcache

$version = $memcache->getVersion();//获取memcache版本
echo "Server's version: " . $version . "<br/>";

$tmp_object = 123;
if ($memcache->get('key')) {
    $memcache->increment('key', 2);
    $va = $memcache->get('key');
    echo $va;//变量自增,变量保存在内存中,修改后刷新保持修改
    var_dump($memcache->getStats());
    exit();
}

$memcache->add('key', $tmp_object, false, 10) or die("Failed to save data at the server");
echo "Store data in the cache (data will expire in 10 seconds)<br/>";

$get_result = $memcache->get('key');
echo "Data from the cache:<br/>";

var_dump($get_result);
var_dump($memcache->getStats());
?>
Copy after login

?

?

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What are the differences between Huawei GT3 Pro and GT4? What are the differences between Huawei GT3 Pro and GT4? Dec 29, 2023 pm 02:27 PM

Many users will choose the Huawei brand when choosing smart watches. Among them, Huawei GT3pro and GT4 are very popular choices. Many users are curious about the difference between Huawei GT3pro and GT4. Let’s introduce the two to you. . What are the differences between Huawei GT3pro and GT4? 1. Appearance GT4: 46mm and 41mm, the material is glass mirror + stainless steel body + high-resolution fiber back shell. GT3pro: 46.6mm and 42.9mm, the material is sapphire glass + titanium body/ceramic body + ceramic back shell 2. Healthy GT4: Using the latest Huawei Truseen5.5+ algorithm, the results will be more accurate. GT3pro: Added ECG electrocardiogram and blood vessel and safety

Fix: Snipping tool not working in Windows 11 Fix: Snipping tool not working in Windows 11 Aug 24, 2023 am 09:48 AM

Why Snipping Tool Not Working on Windows 11 Understanding the root cause of the problem can help find the right solution. Here are the top reasons why the Snipping Tool might not be working properly: Focus Assistant is On: This prevents the Snipping Tool from opening. Corrupted application: If the snipping tool crashes on launch, it might be corrupted. Outdated graphics drivers: Incompatible drivers may interfere with the snipping tool. Interference from other applications: Other running applications may conflict with the Snipping Tool. Certificate has expired: An error during the upgrade process may cause this issu simple solution. These are suitable for most users and do not require any special technical knowledge. 1. Update Windows and Microsoft Store apps

How to use Memcache in PHP development? How to use Memcache in PHP development? Nov 07, 2023 pm 12:49 PM

In web development, we often need to use caching technology to improve website performance and response speed. Memcache is a popular caching technology that can cache any data type and supports high concurrency and high availability. This article will introduce how to use Memcache in PHP development and provide specific code examples. 1. Install Memcache To use Memcache, we first need to install the Memcache extension on the server. In CentOS operating system, you can use the following command

How to Fix Can't Connect to App Store Error on iPhone How to Fix Can't Connect to App Store Error on iPhone Jul 29, 2023 am 08:22 AM

Part 1: Initial Troubleshooting Steps Checking Apple’s System Status: Before delving into complex solutions, let’s start with the basics. The problem may not lie with your device; Apple's servers may be down. Visit Apple's System Status page to see if the AppStore is working properly. If there's a problem, all you can do is wait for Apple to fix it. Check your internet connection: Make sure you have a stable internet connection as the "Unable to connect to AppStore" issue can sometimes be attributed to a poor connection. Try switching between Wi-Fi and mobile data or resetting network settings (General > Reset > Reset Network Settings > Settings). Update your iOS version:

How to optimize PHP application CPU usage using Memcached caching technology? How to optimize PHP application CPU usage using Memcached caching technology? Jun 21, 2023 pm 05:07 PM

With the development of the Internet, PHP applications have become more and more common in the field of Internet applications. However, high concurrent access by PHP applications can lead to high CPU usage on the server, thus affecting the performance of the application. In order to optimize the performance of PHP applications, Memcached caching technology has become a good choice. This article will introduce how to use Memcached caching technology to optimize the CPU usage of PHP applications. Introduction to Memcached caching technology Memcached is a

How to use Memcache for efficient data reading and writing operations in PHP development? How to use Memcache for efficient data reading and writing operations in PHP development? Nov 07, 2023 pm 03:48 PM

In PHP development, using the Memcache caching system can greatly improve the efficiency of data reading and writing. Memcache is a memory-based caching system that can cache data in memory to avoid frequent reading and writing of the database. This article will introduce how to use Memcache in PHP for efficient data reading and writing operations, and provide specific code examples. 1. Install and configure Memcache First, you need to install the Memcache extension on the server. able to pass

Is watch4pro better or gt? Is watch4pro better or gt? Sep 26, 2023 pm 02:45 PM

Watch4pro and gt each have different features and applicable scenarios. If you focus on comprehensive functions, high performance and stylish appearance, and are willing to bear a higher price, then Watch 4 Pro may be more suitable. If you don’t have high functional requirements and pay more attention to battery life and reasonable price, then the GT series may be more suitable. The final choice should be decided based on personal needs, budget and preferences. It is recommended to carefully consider your own needs before purchasing and refer to the reviews and comparisons of various products to make a more informed choice.

How to use Memcache to achieve efficient data caching and sorting operations in PHP development? How to use Memcache to achieve efficient data caching and sorting operations in PHP development? Nov 07, 2023 pm 02:28 PM

PHP is a very popular programming language commonly used for server-side web application development. As the user scale of web applications continues to grow and the amount of data continues to increase, efficient data caching and sorting operations become more and more important. Memcache is a very useful tool in this situation. This article will introduce how to use Memcache to achieve efficient data caching and sorting operations in PHP development, and provide specific code examples. What is Memcache? Memcache is

See all articles