The first method: If you want to rewrite the URL address in the Apache environment, regular expressions are the most basic requirement, but for general URL addresses, basic matching can meet most of our requirements, so unless it is very Special URL addresses, but this is not the scope of what I want to discuss. Learn how to rewrite URL addresses in Apache in a few simple steps. Through examples, you can easily learn to rewrite URL addresses:
002
003 URL examples
004
005 Rewrite URL: http://www.baidu.com/?p=152
006
007 Original URL: http://www.baidu.com/p152.html
008
009 Rewrite rules:
010
011 ^p([0-9]+).html /?p=$1 [L]
012
013 Basic regular knowledge:
014
015 ^ Match the beginning of the line, match the URL The beginning of the address. For RewriteRule, the domain name (http://www.xxxx.com) is not part of the URL address, as above:?p=152
016
017 () separates a captured expression, As above: ([0-9]+)
018
019 [] Define character class, as above: [0-9] represents numbers from 0-9
020
021 + Indicates that the previous character can be repeated Match 1 or several times, as above: [0-9]+, indicating any number combination
022
023 Character escape, as above: escape.
024
025 Others:
026
027 [ L] means last, stop matching other
028
029 The method is as follows:
030
031 1. Open the httpd.conf file and find
032
033 #Lo adModule rewrite_module modules/mod_rewrite.so comment in front #
034
035 2. Open the httpd-vhosts.conf file and add rewrite rules in VirtualHost,
036
037 RewriteEngine On
038
039 RewriteRule ^p([0-9]+).html / ?p=$1 [L]
040
041 Basically these are the two steps above. In fact, in general, URL address rewriting in Apache is relatively simple, and it is much faster than learning from the documentation, but it requires If you want to know more about it, it is necessary to read the relevant documents. Other rules can be customized. Remember: any match is actually a regular expression replacement process.
042
043 Creating search engine-friendly URL addresses is very important for PHP programmers, so simply learning URL address rewriting in Apache will be one of the most basic requirements.
044
045
046 Second method:
047
048 1. First check whether the rewrite module is installed:
049
05 0 cat httpd.conf | grep rewrite
051 LoadModule rewrite_module modules/ mod_rewrite.so
052
053 2. Generate pseudo-static html connection:
054
055 (1) Generate pseudo-static html
056
057 Add
058
059 at the end of the
060 RewriteRule /goods([0-9]+).html /goods.php?id=$1 [PT]
061 A more standard way of writing is:
062 RewriteRule ^(.*)/goods( [0-9]+).html$ $1/goods.php?id=$2 [PT]
063 More concise writing:
064 /goods(d+).html /goods.php?id=$1
065
066 The first (0-9]+) corresponds to parameter $1, and so on the second one corresponds to $2
067
068 Example:
069
070 RewriteRule /forum- ([0-9] +)-([0-9]+).html /forumdisplay.php?fid=$1&page=$2 [PT]
071
072 Test whether http://www.xxx.com/goods1.html is consistent with / The content of goods.php?id=1 is the same
073
074 Finally, all links are replaced with the set pseudo-static html address
075
076
077 [PT]: URL global conversion, that is, the converted goods31.html corresponds to goods.php?id=31 (the default is this without parameters)
078 [R]: URL redirection is when accessing goods31.html Jump to goods.php?id=31
079
080
081 3. Anti-hotlink:
082
083 RewriteCrond %{HTTP_HOST} !xxxx.com [R =301,L]
084 RewriteRule ^(.*)$ http://www.xxxx.com/warning.html [R=301,L]
085
086 Redirect requests not from xxxx.com to http://www.xxxx .com
087
088 Better approach:
089 RewriteCond %{HTTP_REFERER} !^http://(www.)?xxxx.com/.*$ [NC]
090 RewriteRule .(mp 3| rar|jpe|gif)$ http://www.xxxx.com/warning.jpg [R=301,L]
091
092 4. Anti-Baidu crawler:
093 RewriteCond %{HTTP_USER_AGENT} ^Baiduspider [ OR]
094 RewriteRule ^(.*)$ http://www.google.com [R=301,L]
095 Transfer the crawler from Baidu to goole
096
097
098
099
100 PS: PHP pseudo-static method
101
102 Method 1:
103
104 For example, this webpage
105
106 http://www.xxxx.com/soft.php/1,100, 8630.html
107
108 In fact, the script processed is soft.php and the parameters are 1,100,8630
109
110 Equivalent to soft.php?a=1&b=1=100&c=8630 It’s just like this URL is too difficult remember. Search engines don’t like it either.
111
112 True static is just completely generated HTML.
113
114 Directly output when the client accesses. No need for script explanation. It will have very good results when the traffic is very large (such as when there are millions of visits every day). In other words, this HTML page actually exists on the server side.
115
116 Of course, when the traffic of your website is not that large. URL rewriting is the best method (in my personal opinion, you can consider load balancing when there is large traffic. It doesn't matter either)
117
118 There are many methods of URL rewriting, APACHE, IISREWRITE. Even PHP scripts can handle it directly. For example, in the above example, the PHP script handles it directly (the advantage of this method is that it directly reduces the pressure on the WEB server when there is a large amount of traffic. PS: This is also a personal opinion:
119
120 =========== =====================================
121
122 Let’s take the program as an example PHP pseudo-static program implementation method. In fact, I have posted this method in other forum communities before
123
124 Program example:
125
126 http://www.xxxx.com/soft.php /1,100,8630.html
127
128 CODE:
129
130 //Use the server variable to obtain the PATH_INFO information. In this example, it is /1,100,8630.html, which is the part after the execution script name
131
132 if(@$path_info =$ _SERVER["PATH_INFO"]){
133 //Regular match parameters
134 if(preg_match("//(d+),(d+),(d+).html/ si",$path_info,$arr_path)){
135 $gid =intval($arr_path[1]); //Get the value 1
136 $sid =intval($arr_path[2]); //Get the value 100
137 $softid =intval($arr_path[3]); //Get the value 8630
138 }else die("Path:Error!");
139 //Equivalent to soft.php?gid=1&sid =100&softid=8630
140 //It’s that simple. ~)
141 Method 2:
142 Open Apache’s configuration file httpd.conf.
143 2 Remove the # in front of #LoadModule rewrite_module modules/mod_rewrite
144 3 Add in httpd.conf:
145
146 RewriteEngine On
147 #RewriteCond %{ENV:SCRIPT_URL} (?:index|dispbbs)[-0-9]+.html
148 RewriteRule ^(.*?(?:index|dispbbs))-([-0-9 ]+).html 1.php?__is_apache_rewrite=1&__rewrite_arg=2
149
150 Fourth, to realize the mapping of asp post URL to php post, in the third step,
151 RewriteMap tolowercase int:tolower
152 RewriteCond %{QUERY_STRING} (?:boardid|page|id|replyid|star|skin)=d+ [NC]
153 RewriteRule ^ (.*(?:index|dispbbs)).asp 1.php?{tolowercase:%{QUERY_STRING}}&__is_apache_rewrite=1
154 5 Save httpd.conf and restart Apache
155 Method 3:
156 < ?php
157 function mod_rewrite(){
158 global
159 $ _GET;
160 $nav=$ _SERVER["REQUEST_URI"];
161 $script_name=$ _SERVER["SCRIPT_NAME"];
162 $nav=substr(ereg_replace("^$script_name","",urldecode($nav)),1);
163 $nav=preg_replace("/^.ht(m){1}(l){ 0,1}$/","",$nav);//This sentence is .html or .htm with the tail removed
164 $vars = explode("/",$nav);
165 for($ i=0;$i 166 $ _GET["$vars[$i]"]=$vars[$i+1]; 167 } 168 return $ _GET; 169 } 170 mod_rewrite(); 171 $yearn=$ _GET["year"];//The result is '2006' 172 $action=$ _GET["action"] ;//The result is '_add' 173 echo $yearn; 174 echo $action; 175 ?> 176
177 function mod_rewrite(){ 178 global $ _GET; 179 $nav= $ _SERVER["REQUEST_URI"]; 180 $script_name= $ _SERVER["SCRIPT_NAME"]; 181 $nav=substr(ereg_replace("^$script_name","",url decode($ nav)),1); 182 $nav=preg_replace("/^.ht(m){1}(l){0,1}$/","",$nav);//This sentence is Remove the trailing .html or .htm 183 $vars = explode("/",$nav); 184 for($i=0;$i 185 $ _GET["$vars[$i]"]=$vars[$i+1]; 186 } 187 return 188 $ _GET; 189 } 190 mod_rewrite(); 191 $yearn= $ _GET["year"];//The result is '2006' 192 $action=$ _GET["action"];//The result is '_add' 193 echo $yearn; 194 echo $action; 195 In many cases, the access of a certain IP can easily cause the CPU to be 100% (such as fixed crawling by some search engines, a large number of collection sites by others), at this time we have to use some effective The method is to block the other party's IP so that it cannot consume the server's resources. There are many ways to block IP. If your Web server has the Rewrite module installed, you can also try to use Rewrite rules to block the other party's IP. 196 1. For example, we redirect a specific IP directly to the baidu homepage and add the code in the .htaccess file in the root directory of the website: 197 RewriteCond % 123.123.123.123 [NC]RewriteRule ^(.*)$ http://www.baidu.com/$1 [R=301] Replace the IP 123.123.123.123 with the IP you want to restrict 198 2. If you want to implement multiple IPs, you can write like this: 199 RewriteCond % 123.123.123.123 [OR]RewriteCond % 124.124.124.124 [NC]RewriteRule ^(.*)$ http://www.baidu.com/$1 [R=301] The above is the URL address rewritten by Apache Content, please pay attention to the PHP Chinese website (www.php.cn) for more related content!
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