Table of Contents
一个简单至极的PHP缓存类代码,至极php缓存
Home php教程 php手册 一个简单至极的PHP缓存类代码,至极php缓存

一个简单至极的PHP缓存类代码,至极php缓存

Aug 12, 2017 am 10:32 AM
php cache


一个简单至极的PHP缓存类代码,至极php缓存


网上关于 PHP 缓存类的资料很多,不过这个类应该是我见过功能满足需求,但又无比简洁的一个。废话不多说,直接看代码吧!
使用说明:
1、实例化
$cache = new Cache();
2、设置缓存时间和缓存目录
$cache = new Cache(60, '/any_other_path/');
第一个参数是缓存秒数,第二个参数是缓存路径,根据需要配置。
默认情况下,缓存时间是 3600 秒,缓存目录是 cache/
3、读取缓存
$value = $cache->get('data_key');
4、写入缓存
$value = $cache->put('data_key', 'data_value');
完整实例:

$cache = new Cache(); 
 
//从缓存从读取键值 $key 的数据 
$values = $cache->get($key); 
 
//如果没有缓存数据 
if ($values == false) { 
//insert code here... 
//写入键值 $key 的数据 
$cache->put($key, $values); 
} else { 
//insert code here... 
}
Copy after login

Cache.class.php

cache_expire=$exp_time; 
$this->cache_path=$path; 
} 
 
//returns the filename for the cache 
private function fileName($key){ 
return $this->cache_path.md5($key); 
} 
 
//creates new cache files with the given data, $key== name of the cache, data the info/values to store 
public function put($key, $data){ 
$values = serialize($data); 
$filename = $this->fileName($key); 
$file = fopen($filename, 'w'); 
if ($file){//able to create the file 
fwrite($file, $values); 
fclose($file); 
} 
else return false; 
} 
 
//returns cache for the given key 
public function get($key){ 
$filename = $this->fileName($key); 
if (!file_exists($filename) || !is_readable($filename)){//can't read the cache 
return false; 
} 
if ( time() < (filemtime($filename) + $this->cache_expire) ) {//cache for the key not expired 
$file = fopen($filename, "r");// read data file 
if ($file){//able to open the file 
$data = fread($file, filesize($filename)); 
fclose($file); 
return unserialize($data);//return the values 
} 
else return false; 
} 
else return false;//was expired you need to create new 
} 
} 
?>
Copy after login

相信大家一定会喜欢这个简洁的php缓存类代码,希望对大家的学习有所帮助。

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
R.E.P.O. Best Graphic Settings
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 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)

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

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

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

To work on file upload we are going to use the form helper. Here, is an example for file upload.

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

In this chapter, we are going to learn the following topics related to routing ?

CakePHP Working with Database CakePHP Working with Database Sep 10, 2024 pm 05:25 PM

Working with database in CakePHP is very easy. We will understand the CRUD (Create, Read, Update, Delete) operations in this chapter.

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

CakePHP Creating Validators CakePHP Creating Validators Sep 10, 2024 pm 05:26 PM

Validator can be created by adding the following two lines in the controller.

See all articles