codeigniter 用.htcaccess做动态二级域名解析

今天将服务器php版本升到了5.4.4，然后将之前的一个项目改用apache,动态二级转向用.htcaccess，共享一下

AuthName "yousite Website Coming Soon..."  //如果你想给你的网站加个权限访问AuthType Basic AuthUserFile D:/xxx/.htpasswd  #如果你想设置密码访问 如何生成.htpasswd可以访问 http://www.htaccesstools.com/htpasswd-generator/#AuthGroupFile /dev/null require valid-user<IfModule mod_rewrite.c>    RewriteEngine On    RewriteBase /    #Removes access to the system folder by users.    #Additionally this will allow you to create a System.php controller,    #previously this would not have been possible.    #'system' can be replaced if you have renamed your system folder.    RewriteCond %{REQUEST_URI} ^system.*     RewriteRule ^(.*)$ /index.php?/$1 [L]    #When your application folder isn't in the system folder    #This snippet prevents user access to the application folder    #Submitted by: Fabdrol    #Rename 'application' to your applications folder name.    RewriteCond %{REQUEST_URI} ^application.*    RewriteRule ^(.*)$ /index.php?/$1 [L]    <IfModule mod_proxy.c>      # Redirect to boutique (with any trailing path)      RewriteCond %{HTTP_HOST} !^www. [NC]      RewriteCond %{HTTP_HOST} ^([^.]+).yousite.com(.*)$ [NC]      RewriteRule ^(.*)$ http://www.yousite.com/boutique/$1$2 [P,L]    </IfModule>    <IfModule !mod_proxy.c>      # Redirect to boutique (with any trailing path)      RewriteCond %{HTTP_HOST} !^www. [NC]      RewriteCond %{HTTP_HOST} ^([^.]+).yousite.com(.*)$ [NC]      RewriteRule ^(.*)$ http://www.yousite.com/boutique/%1/$1 [R=301,L]    </IfModule>    ## Otherwise, force www;    RewriteCond %{HTTP_HOST} ^yousite.com$ [NC]    RewriteRule ^(.*)$ http://www.yousite.com/$1 [R=301,L]    #Checks to see if the user is attempting to access a valid file,    #such as an image or css document, if this isn't true it sends the    #request to index.php    RewriteCond %{REQUEST_FILENAME} !-f    RewriteCond %{REQUEST_FILENAME} !-d    RewriteRule ^(.*)$ index.php/$1 [L]</IfModule><IfModule !mod_rewrite.c>    # If we don't have mod_rewrite installed, all 404's    # can be sent to index.php, and everything works as normal.    # Submitted by: ElliotHaughin    ErrorDocument 404 /index.php</IfModule>  

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