WordPress URL Rewrite for Static URLs on IIS Host - Perfect Solution

First, your web hosting provider needs to support custom error pages. Then create a 404.php file in UTF-8 format with the following code:

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<?php
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header("HTTP/1.1 200 OK");
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$ori_qs = strtolower($_SERVER['QUERY_STRING']);
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$pattern = '/[^;]+;[^:]+:\/\/[^\/]+(\/[^\?]*)(?:\?(.*))?/i';
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preg_match($pattern, $ori_qs, $matches);
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$_SERVER['PATH_INFO'] = $matches[1] . '?' . $matches[2];
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$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
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$query_args = explode('&', $matches[2]);
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unset($_GET);
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foreach ($query_args as $arg)
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{
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$the_arg = explode('=', $arg);
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$_GET[$the_arg[0]] = $the_arg[1];
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}
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include('index.php');
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?>

After creating it, upload to the website root directory, then set the custom error page to 404.php. This way you can go to Dashboard - Settings - Permalinks to enable static URLs. However, this method causes Chinese tags and some related tags to not be found. The solution is to find the following code in wp-include/classes.php:

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if ( isset($_SERVER['PATH_INFO']) )
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$pathinfo = $_SERVER['PATH_INFO'];
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else
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$pathinfo = '';
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$pathinfo_array = explode('?', $pathinfo);
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$pathinfo = str_replace("%", "%25", $pathinfo_array[0]);
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$req_uri = $_SERVER['REQUEST_URI'];

Change to:

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if ( isset($_SERVER['PATH_INFO']) )
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$pathinfo = mb_convert_encoding($_SERVER['PATH_INFO'], 'utf-8', 'GBK');
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else
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$pathinfo = ";
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$pathinfo_array = explode('?', $pathinfo);
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$pathinfo = str_replace("%", "%25", $pathinfo_array[0]);
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$req_uri = mb_convert_encoding($_SERVER['REQUEST_URI'], 'utf-8', 'GBK');

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