Method to implement php301 redirection: 1. Get the domain name of the current page; 2. Determine the request part after the address; 3. Determine whether the current domain name contains www; 4. If it does not contain www, use header( ) function issues a 301 redirect jump header, and then jumps to the URL with www.
Friends who do SEO know that after the website is completed, in order to prevent search engines from giving wrong rankings (with www and without www), usually It is a good habit to 301 redirect the domain name without www to the one with www. However, many virtual hosts used by novice friends do not support 301. At this time, we can use code to do 301 redirection. Below we will analyze the 301 redirection jump code of PHP in detail. (//Followed by php comments)
<?Php //php開始標(biāo)識
$the_host=$_SERVER['HTTP_HOST'];//獲取當(dāng)前坐在頁面的域名
$the_url= isset($_SERVER['REQUEST_URI']) ?$_SERVER['REQUEST_URI'] :'';//判斷地址后面部分
$the_url=strtolower($the_url);//將大寫字母轉(zhuǎn)變成小寫字母
if($the_url=="/index.php")//判斷當(dāng)前頁面是不是首頁
{
$the_url="";//如果是首頁，變量$the_url賦值為空
}
if($the_host!=='www.xxx.com')//如果當(dāng)前域名不是帶www的則進(jìn)行301跳轉(zhuǎn)
{
header('HTTP/1.1 301 Moved Permanently');//發(fā)出301重定向跳轉(zhuǎn)頭部
header('Location:http://www.xxx.com'.$the_url);//跳轉(zhuǎn)到帶www的網(wǎng)址
}
?>
The above are php code-style 301 redirect jumps. You can put these codes at the head of the page, or you can make the code into a separate php file (such as 301 .php) then call it at the head of the page, the external calling code is:
<?phpinclude("301.php"); ?>。The above is the detailed content of How to do php301 redirect. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
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
Vue3+TS+Vite development skills: how to optimize SEO
Sep 10, 2023 pm 07:33 PM
Vue3+TS+Vite development skills: How to perform SEO optimization SEO (SearchEngineOptimization) refers to optimizing the structure, content and keywords of the website to rank it higher in search engines, thereby increasing the website's traffic and exposure. . In the development of modern front-end technologies such as Vue3+TS+Vite, how to optimize SEO is a very important issue. This article will introduce some Vue3+TS+Vite development techniques and methods to help
Summary of Vue development experience: Practice in solving SEO and search engine optimization
Nov 22, 2023 am 08:44 AM
Summary of Vue development experience: Practice in solving SEO and search engine optimization In the current era of rapid development of mobile Internet and Web technology, search engines are still one of the most important ways to obtain information on the Internet. For websites that need to gain high exposure in search engines, SEO (SearchEngineOptimization) is an essential task. So, for web development projects using Vue technology, how to achieve SEO and search engine optimization? Vue
What is the difference between SEO and SEM
Aug 10, 2023 pm 03:48 PM
The difference between SEO and SEM is 1. SEO refers to search engine optimization, while SEM refers to search engine marketing; 2. SEO optimizes the visibility of the website so that it naturally ranks in front of organic search results, while SEM uses advertising to Paid ranking at the top of search results; 3. SEO is a long-term strategy, which requires continuous and sustained efforts to maintain the website's ranking in search engines, while SEM can be flexibly adjusted and implemented, and it can quickly adjust the advertising strategy as needed. and budget.
How Vue performs SEO optimization and practical suggestions
Jun 09, 2023 pm 04:13 PM
With the continuous development of web technology, more and more websites are beginning to use Vue as the front-end framework. Although Vue can provide a good user experience and development efficiency, there are still some challenges in search engine optimization. This article will introduce how Vue performs SEO optimization and some practical suggestions. 1. Vue’s SEO issues Vue’s SEO issues mainly include the following points: Server-side rendering issues: Vue is a single-page application (SPA), which means that it is rendered in the browser through JavaScript
SSR technology application practice in Vue 3 to improve the SEO effect of the application
Sep 08, 2023 pm 12:15 PM
SSR technology application practice in Vue3 to improve the SEO effect of applications. With the rapid development of front-end development, SPA (Single Page Application) has become mainstream. The benefits of SPA are self-evident and can provide a smooth user experience, but there are some challenges in terms of SEO (search engine optimization). Since SPA only returns an HTML template in the front-end rendering stage, most of the content is dynamically loaded through JavaScript, causing search engines to have difficulties in crawling, indexing, and ranking. To solve this problem,
Http status: What is the difference between 301 and 302 jumps? What are the benefits or problems when using it?
Jul 12, 2022 pm 12:22 PM
What is the difference between 301 jump and 302 jump? The following article will help you compare 301 and 302 jumps, talk about their differences, and what are the benefits or problems when using these two transfers. I hope it will be helpful to you!
What is a 301/302 redirect? How to redirect the website?
Jul 12, 2022 pm 12:07 PM
What is a 301/302 redirect? How to redirect the website? This article will take you through 301/302 jumps, introduce the jump methods, and analyze them from the SEO perspective to see which method is practical. I hope it will be helpful to everyone!
Optimizing website SEO: practice of pseudo-static hiding php suffix
Mar 07, 2024 pm 12:27 PM
As we all know, optimizing the SEO of a website is a very important part of website operation. The default URLs of dynamic web systems (such as PHP) used by many websites have extensions (.php, .html, etc.), which will affect the SEO effect of the website. In order to improve the optimization effect of the website, a common practice is to change the dynamic URL to a pseudo-static URL to hide the extension name and improve the user experience and search engine ranking of the website. This article will take "pseudo-static hidden php suffix" as the theme, introduce how to achieve this optimization in PHP websites, and
