Summary of methods for generating short URLs using PHP
本文给大家汇总介绍了3种使用php生成短网址的方法,第一种是PHP+MySQl实现短网址的生成和读取,第二种是php+ini方式,第三种跟第一种有些类似,各有利弊,小伙伴们可以根据自己的项目需求来选择。
正常的网址带上参数的那种可能会很长,尤其是我们在印刷纸质品如企业宣传册中要印上某个长的url的话非常难看,而且也没几个人会去记这个网址,虽然现在可以用扫二维码的方式打开长网址。但是人们可以使用短网址来实现优美的链接,尤其是有字数限制的应用如微博。
短网址的实现原理就是有一个数据表会配置文件将短网址和实际网址进行对应,当请求某个短网址时,程序跳转到对应的实际网址上去,从而实现网址的访问。
方案1:PHP+MySQl实现短网址的生成和读取
常规的方案我们将生成好的短网址和原网址对应到一张数据表中,然后供读取使用。我们先来看如何生成唯一的短网址。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 |
|
使用以上PHP代码可以生成唯一的6位的短网址,然后我们将生成的短网址与原网址一起写入到MySQL表中,插入数据库的代码这里我就不写了,这是PHP基础。
接着,我们有一个link.php用来接收读取url并实现真实跳转。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
|
代码中,如果得到短网址对应的真实url,会使用header跳转到真实的页面上去,否则返回404代码。这样我们可以使用如: http://yourdomain/link.php?url=xxx来实现短网址访问。
继续,我们使用URL rewrite即重写功能来实现诸如可以通过地址:http://yourdomain/xxx 来访问。
以下是rewrite规则:
1 2 3 4 5 |
|
方案2:PHP+ini实现短网址技术
对于方案1使用数据库的做法好处就是操作方便,而大量短网址查询需要做优化。而方案2则放弃数据库,使用ini配置,我们将短网址和真实网址配置在ini文件中,PHP直接通过parse_ini_file()读取ini文件,几行代码就可以实现短网址的跳转。
links.ini文件像这样配置:
1 2 3 4 |
|
而index.php的代码可以这样写:
1 2 3 4 5 6 7 8 9 |
|
当然,我们还需要配置下rewrite规则。
1 2 3 4 5 |
|
好了,我们现在访问网址:http://demo.jb51.net/dm,它直接跳转到实际网址:http://www.jb51.net/view-blog-362.html。
相比来说,第二种方案适合小型的应用,你还可以把url地址做成数组形式保存,还可以做一个管理界面专门维护这些短网址。
第三种方案:php版的短链接生成方法
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 |
|
总结:
用户访问短网址 时的过程:
1、浏览器访问短网址http://short.cn/Xvdf23,经过DNS解析会指向到http://short.cn的服务器。
2、服务器根据短网址中的ID字段查找数据库,返回原始网址。
3、重定向到上面返回的原始网址
总结:以上就是本篇文的全部内容,希望能对大家的学习有所帮助。
相关推荐:
The above is the detailed content of Summary of methods for generating short URLs using PHP. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

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

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

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,

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

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.

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

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.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.
