Home Backend Development PHP Tutorial php+mysql网站怎么减少链接数据库的次数

php+mysql网站怎么减少链接数据库的次数

Jun 13, 2016 am 10:24 AM
100 html memcached php

php+mysql网站如何减少链接数据库的次数
有一个网站,需要在首页上显示
最新添加的物品
最后更新的物品
搜索最多的物品
最近搜索的物品
A种类的物品中卖的最多的
B种类的物品中卖的最多的
指定的物品
特别指定的物品

以上查询针对于同一个表。这个表的记录非常的多,表的字段内容也很多。如果每个查询都执行一次的话。服务器的cpu占用率非常的高。几个人同时访问刷新就会很慢。
有没有什么缓存的技术可以使用。刚接触php不是特别了解。期望高手解答


------解决方案--------------------
http://zhidao.baidu.com/question/73543180.html
不知道这个是不是你要找的
没有实际写过不敢妄言
------解决方案--------------------
php 的 Memcached 是否对你有帮助?我自己没用过,正考虑系统的学习一下 Memcached.
------解决方案--------------------
将操作的结果缓存在内存或序列化后保存在文件
如 最新添加的物品 在insert进表的操作中 同时写进缓存文件 首页直接读取缓存
考虑更新是否很频繁 很频繁的话建议 分表
------解决方案--------------------
缓存技术是数据库的救星。。memcache是个不错的选择 安装和使用都非常的简单
------解决方案--------------------
关于缓存技术( MemCached )
可以参考以下两个案例,对你肯定有帮助:http://www.php100.com/html/shipinjiaocheng/PHP100shipinjiaocheng/2010/0125/3856.html
http://www.php100.com/html/shipinjiaocheng/PHP100shipinjiaocheng/2010/0201/3897.html
------解决方案--------------------
memcache是一方面。
楼主的需求上,可以对表做一下分解。不要都针对一个表,而且针对一个表的做法也不合理。如果你是想关联查询的话,那就把关联的内容直接写到目标表里面,不要关联。
假设商品表为goods
最新添加的物品 购物车表cart
最后更新的物品 购物车表cart
搜索最多的物品 搜索表searchlog
最近搜索的物品 搜索表searchlog
A种类的物品中卖的最多的 销售表sold
B种类的物品中卖的最多的 销售表sold
指定的物品 置顶表topads
特别指定的物品 置顶表topads
——上面写了个大概意思吧。你可以在创建cart表的时候创建一个字段为goods_title储存货物名。

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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

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)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

7 PHP Functions I Regret I Didn't Know Before 7 PHP Functions I Regret I Didn't Know Before Nov 13, 2024 am 09:42 AM

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

How do you parse and process HTML/XML in PHP? How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

PHP Program to Count Vowels in a String PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

Explain late static binding in PHP (static::). Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

See all articles