Home php教程 php手册 CodeIgniter启用缓存和清除缓存的方法

CodeIgniter启用缓存和清除缓存的方法

Jun 06, 2016 pm 08:21 PM
codeigniter

Codeigniter支持缓存技术,以达到最快的速度。依靠网页缓存,你的网页可以达到近乎静态网页的加载速度,因为他们将程序输出的结果保存到硬盘上了。这篇文章主要

Codeigniter支持缓存技术,以达到最快的速度。尽管CI已经相当高效了,但是网页中的动态内容、主机的内存CPU和数据库读取速度等因素直接影响了网页的加载速度。依靠网页缓存,你的网页可以达到近乎静态网页的加载速度,因为他们将程序输出的结果保存到硬盘上了。

缓存是怎么工作的?

CI支持每个页面单独缓存,而且可以设置缓存更新时间。当一个网页第一次被加载的时候,缓存文件将被保存到application/cache文件夹。下次访问的时候,系统就会直接读取缓存文件,然后返回给用户的浏览器。如果缓存文件过期,它将被删除并重新生成。
注意:Benchmark标签在使用了缓存的页面仍然可用。

启动缓存

启用缓存功能,,只需要将下面的代码放入你的任何一个控制器(controller)的方法(function)内:

复制代码 代码如下:

$this->output->cache(n);


其中n是你希望缓存更新的分钟数。可以使用m/60来精确到秒,例如1/60,则是精确到1秒
上面的代码可以放到任何一个function里面。他的出现顺序对缓存并没有影响,所以将它放在你认为最合乎逻辑的地方。一旦上面的代码放到了控制器的方法中,页面就会被缓存。
警告:由于CI存储缓存文件的方式,只有通过view文件的输出才能被缓存。
注意:在缓存文件产生之前,请确保application/cache文件夹可写。

清除缓存

如果你不再想使用缓存,仅需将上面的代码从你的controller里面删除即可。注意:这样做并不能让缓存文件立即消失,它将会自动过期并被删除。如果你想立即删除那些文件,就必须自己动手了。
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
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Two Point Museum: All Exhibits And Where To Find Them
1 months 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)

How to implement custom middleware in CodeIgniter How to implement custom middleware in CodeIgniter Jul 29, 2023 am 10:53 AM

How to implement custom middleware in CodeIgniter Introduction: In modern web development, middleware plays a vital role in applications. They can be used to perform some shared processing logic before or after the request reaches the controller. CodeIgniter, as a popular PHP framework, also supports the use of middleware. This article will introduce how to implement custom middleware in CodeIgniter and provide a simple code example. Middleware overview: Middleware is a kind of request

CodeIgniter middleware: Accelerate application responsiveness and page rendering CodeIgniter middleware: Accelerate application responsiveness and page rendering Jul 28, 2023 pm 06:51 PM

CodeIgniter Middleware: Accelerating Application Responsiveness and Page Rendering Overview: As web applications continue to grow in complexity and interactivity, developers need to use more efficient and scalable solutions to improve application performance and responsiveness. . CodeIgniter (CI) is a lightweight PHP-based framework that provides many useful features, one of which is middleware. Middleware is a series of tasks that are performed before or after the request reaches the controller. This article will introduce how to use

How to use the database query builder (Query Builder) in the CodeIgniter framework How to use the database query builder (Query Builder) in the CodeIgniter framework Jul 28, 2023 pm 11:13 PM

Introduction to the method of using the database query builder (QueryBuilder) in the CodeIgniter framework: CodeIgniter is a lightweight PHP framework that provides many powerful tools and libraries to facilitate developers in web application development. One of the most impressive features is the database query builder (QueryBuilder), which provides a concise and powerful way to build and execute database query statements. This article will introduce how to use Co

PHP development: Using CodeIgniter to implement MVC pattern and RESTful API PHP development: Using CodeIgniter to implement MVC pattern and RESTful API Jun 16, 2023 am 08:09 AM

As web applications continue to evolve, it is important to develop applications more quickly and efficiently. And, as RESTful API is widely used in web applications, it is necessary for developers to understand how to create and implement RESTful API. In this article, we will discuss how to implement MVC pattern and RESTful API using CodeIgniter framework. Introduction to MVC pattern MVC (Model-Vie

How to use CodeIgniter5 framework in php? How to use CodeIgniter5 framework in php? Jun 01, 2023 am 11:21 AM

CodeIgniter is a lightweight PHP framework that uses MVC architecture to support rapid development and simplify common tasks. CodeIgniter5 is the latest version of the framework and offers many new features and improvements. This article will introduce how to use the CodeIgniter5 framework to build a simple web application. Step 1: Install CodeIgniter5 Downloading and installing CodeIgniter5 is very simple, just follow these steps: Download the latest version

CodeIgniter middleware: Provides secure file upload and download functions CodeIgniter middleware: Provides secure file upload and download functions Aug 01, 2023 pm 03:01 PM

CodeIgniter middleware: Provides secure file upload and download functions Introduction: In the process of web application development, file upload and download are very common functions. However, for security reasons, handling file uploads and downloads often requires additional security measures. CodeIgniter is a popular PHP framework that provides a wealth of tools and libraries to support developers in building secure and reliable web applications. This article will introduce how to use CodeIgniter middleware to implement secure files

Use PHP framework CodeIgniter to develop a real-time chat application to provide convenient communication services Use PHP framework CodeIgniter to develop a real-time chat application to provide convenient communication services Jun 27, 2023 pm 02:49 PM

With the development of mobile Internet, instant messaging has become more and more important and popular. For many companies, live chat is more like a communication service, providing a convenient communication method that can quickly and effectively solve business problems. Based on this, this article will introduce how to use the PHP framework CodeIgniter to develop a real-time chat application. Understand the CodeIgniter framework CodeIgniter is a lightweight PHP framework that provides a series of simple tools and libraries to help developers quickly

How to use the PHP framework CodeIgniter to quickly build a backend management system How to use the PHP framework CodeIgniter to quickly build a backend management system Jun 27, 2023 am 09:46 AM

In today's Internet era, a website that is loved by users must have a simple and clear front-end interface and a powerful back-end management system, and the PHP framework CodeIgniter is an excellent framework that allows developers to quickly build a back-end management system. CodeIgniter has the characteristics of lightweight, high efficiency, and easy expansion. This article will be aimed at beginners and explain in detail how to quickly build a backend management system through this framework. 1. Installation and configuration Installation of PHPCodeIgniter is a PHP-based

See all articles