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Xiaobian to share with you what htaccess pseudo-static rules are, I believe most people do not know how, so share this article for your reference, I hope you have a lot of harvest after reading this article, let's go to understand it together!

htaccess pseudo-static rule

The.htaccess file provides a way to change configuration for directories and is a configuration file in the Apache server that is responsible for configuring web pages in the relevant directory. Through htaccess files, you can help us achieve: 301 redirect, customize 404 error pages, change file extensions, allow/block access to specific users or directories, prohibit directory lists, configure default documents and other functions.

Pseudo-static is actually using PHP to resolve the current address into another way to access the website! To learn how to write pseudo-static rules, you have to know a bit about regular rules.

Regular expressions tutorial

A brief list is as follows:

. All characters except newlines\w Match letters or numbers or underscores or Chinese characters\s Match any white space\d Match numbers\b Match beginning or end of word ^Match beginning of string $Match end of string * Repeat zero or more times + Repeat one or more times? Repeat zero or once {n} Repeat n times {n,} Repeat n or more {n,m} Repeat n to m times

Common.htaccess application examples

1 To prevent chain theft, if the user who wants to visit the url at the end of jpe jpg bmp png is not from our website, then let him see a display image of our website.

RewriteEngine OnRewriteCond %{HTTP_REFERER} !^ http://(.+.)? mysite.com/ [NC]RewriteCond %{HTTP_REFERER} !^$ RewriteRule .*. (jpe? g|gif|bmp|png)$ /images/nohotlink.jpg [L]

2 When the website is upgraded, only certain IPs can be accessed, and other users will see an upgrade page

RewriteEngine onRewriteCond %{REQUEST_URI} !/ upgrade.html$RewriteCond %{REMOTE_HOST} !^ 24\.121\.202\.30RewriteRule $ http://www.linuxidc.com/upgrade.html [R=302,L]

3 Transfer old domain names to new domain names

# redirect from old domain to new domainRewriteEngine OnRewriteRule ^(.*)$ http://www.yourdomain.com/$1[R=301,L]

III. Common Examples

For example: www.yzzmf.com/index.html-> http://www.yzzmf.com/index.php

RewriteEngine OnRewriteRule index.html index.php

For example: www.yzzmf.com/test8.html-> http://www.yzzmf.com/test.php? id=8

RewriteRule ^test([0-9]*).html$ test.php? id=$1

For example: www.yzzmf.com/cat-1-3.html-> http://www.yzzmf.com/cat.php? id1=1&id2=3

RewriteRule ^cat-([0-9]+)-([0-9]+)\.html$ cat.php? id1=$1&id2=$2

For example: www.yzzmf.com/cat-zbc2ac-3-5.html-> http://www.yzzmf.com/cat.php? id0=zbc2ac&id1=3&id2=5

RewriteRule ^cat-([a-zA-Z0-9\-]*)-([0-9]+)-([0-9]+)\.html$ cat.php? id0=$1&id1=$2&id2=$3

For example: www.yzzmf.com/cat1-4-3-8.html-> http://www.yzzmf.com/cat1.php? id1=4&id2=3&id3=8

RewriteRule ^cat1-([0-9]+)-([0-9]+)-([0-9]+)\.html$ cat1.php? id1=$1&id2=$2&id3=$3

For example: www.yzzmf.com/cat5/-> http://www.yzzmf.com/cat.php? id1=5

RewriteRule ^cat([0-9]*)/$ cat.php? id1=$1

For example: www.yzzmf.com/catm6/3/-> http://www.yzzmf.com/catm.php? id1=6&id2=3

RewriteRule ^catm([0-9]*)/([0-9]*)/$ catm.php? id1 =$1 &id2 =$2 above is htaccess pseudo-static rule is what all the content, thank you for reading! I believe that everyone has a certain understanding, hope to share the content to help everyone, if you still want to learn more knowledge, welcome to pay attention to the industry information channel!

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