IIS7下WordPress中文Tag和目录无法访问完美解决方法（不修改程序）

方法很简单。新建一个“_chineseuri.php”文件，内容如下：

<?php

// IIS Mod-Rewrite
if (isset($_SERVER['HTTP_X_ORIGINAL_URL'])) {
$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
}
// IIS Isapi_Rewrite
else if (isset($_SERVER['HTTP_X_REWRITE_URL'])) {
$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
}
else
{
// Use ORIG_PATH_INFO if there is no PATH_INFO
if ( !isset($_SERVER['PATH_INFO']) && isset($_SERVER['ORIG_PATH_INFO']) )
$_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO'];

// Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
if ( isset($_SERVER['PATH_INFO']) ) {
if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] )
$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
else
$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
}

// Append the query string if it exists and isn't null
if (isset($_SERVER['QUERY_STRING']) && !empty($_SERVER['QUERY_STRING'])) {
$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
}
}

require("index.php");

?> 

然后建立“web.config”文件，如果已经有同名文件就把原来的删掉，其内容如下：

<configuration>   
  <system.webServer>   
    <rewrite>   
      <rules>  
      	<rule name="Chinese Tag and Category for WordPress" stopProcessing="true">
          <match url="^(tag|category)/(.*)$" />
          <action type="Rewrite" url="_chineseuri.php"/>
        </rule>
        <rule name="wordpress" patternSyntax="Wildcard">   
          <match url="*" />   
            <conditions>   
              <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />   
              <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />   
            </conditions>   
          <action type="Rewrite" url="index.php" />   
        </rule>        
      </rules>   
    </rewrite>   
  </system.webServer>   
</configuration>

如果你的Wordpress不是装在根目录，则需要更改“<match url="^(tag|category)/(.*)$" /> ”为“<match url="^你的目录/(tag|category)/(.*)$" /> ”。如果你把默认的标签和目录的地址改了，则更改这句话里面的对应内容即可。

把上面两个文件上传至Wordpress所在的根目录（即web.config所在的目录）覆盖原来的文件即可。

参考更改Wordpress源文件解决这个问题的文章，我们可以知道，是$_SERVER['REQUEST_URI']和$_SERVER['PATH_INFO']的问题。原因太多了，就不罗嗦了，想要明白解决问题的原理是什么，自己查看上面两份代码吧，呵呵。