PHP implementation of 301 permanent redirection and 302 temporary redirection method_PHP tutorial

In the server, 301 and 302, for search engines, one is to permanently jump to a new address, and the other is to tell you that you have temporarily reached a new address. So how do we implement 301 permanent redirection and 302 temporary redirection in PHP? As for orientation, let's take a look at the implementation procedure of the method.

The principle of implementing redirection is very simple, that is, the web server returns an HTTP header to the visitor. The function of PHP sending HTTP header is implemented by the header() function. These status codes 301, 302, 404 are agreed upon in the HTTP protocol, so there is no need to ask "Why is it 301 instead of 3001?" Enough talk, let’s get back to the topic.

PHP 301 redirect:

The code is as follows

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代码如下	复制代码
header('HTTP/1.1 301 Moved Permanently');  Header( "Location: http://www.hzhuti.com/" );  exit();

header('HTTP/1.1 301 Moved Permanently');

Header( "Location: http://www.hzhuti.com/" );

代码如下	复制代码
//301永久重定向 $http_protocol = $_SERVER['SERVER_PROTOCOL']; //http协议版本 //如果是其他协议，则默认为HTTP/1.0 if ( 'HTTP/1.1' != $http_protocol && 'HTTP/1.0' != $http_protocol ) $http_protocol = 'HTTP/1.0'; //响应301状态码 header("$http_protocol 301 Moved Permanently"); //指定重定向的URL $new_url = 'http://www.bKjia.c0m/'; header("Location:$new_url"); ?>

exit();

代码如下	复制代码
header("Location: http://www.hzhuti.com/");  exit();

or

The code is as follows	Copy code
代码如下	复制代码
header("HTTP/1.1 404 Not Found"); exit();

//301 permanent redirect

$http_protocol = $_SERVER['SERVER_PROTOCOL']; //http protocol version

//If it is other protocols, the default is HTTP/1.0

If ( 'HTTP/1.1' != $http_protocol && 'HTTP/1.0' != $http_protocol )

$http_protocol = 'HTTP/1.0';

代码如下	复制代码
Redirect 301 /old/old.htm http://www.bKjia.c0m/new.htm Redirect permanent /one http://bKjia.c0m/two RedirectMatch 301 (.*).gif$ http://www.bKjia.c0m/images/.jpg

<🎜> //Response to 301 status code<🎜> header("$http_protocol 301 Moved Permanently");<🎜> <🎜> //Specify the redirect URL<🎜> $new_url = 'http://www.bKjia.c0m/';<🎜> header("Location:$new_url");<🎜> ?> PHP 302 redirect:

The code is as follows	Copy code
header("Location: http://www.hzhuti.com/"); exit();

By the way, the PHP 404 error is also attached:

The code is as follows	Copy code
header("HTTP/1.1 404 Not Found"); exit();

That’s all about PHP 301 and 302 redirection. Here’s how to do it with Apache Example: APACHE

The code is as follows	Copy code
Redirect 301 /old/old.htm http://www.bKjia.c0m/new.htm Redirect permanent /one http://bKjia.c0m/two RedirectMatch 301 (.*).gif$ http://www.bKjia.c0m/images/$1.jpg

2. Use mod_rewrite to rewrite the URL

APACHE

Options +FollowSymLinks RewriteEngine on

The code is as follows

代码如下	复制代码
Options +FollowSymLinks RewriteEngine on RewriteCond %{HTTP_HOST} ^bKjia.c0m RewriteRule ^(.*)$ http://www.bKjia.c0m/ [R=permanent,L]

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RewriteCond %{HTTP_HOST} ^bKjia.c0m RewriteRule ^(.*)$ http://www.bKjia.c0m/$1 [R=permanent,L]

I won’t introduce anyone here about apache htaccess. The method of rewriting URLs with mod_rewrite is almost exactly the same. http://www.bkjia.com/PHPjc/632708.html

www.bkjia.comtrue

http: //www.bkjia.com/PHPjc/632708.htmlTechArticleIn the server, 301 and 302, for search engines, one is to permanently jump to a new address, and the other is to tell You have temporarily reached a new address, so how do we implement 301 permanent reset in php...