How to solve the problem when PHP code displays garbled file name?

How to solve the problem that the file name displayed in PHP code is garbled?

During development, sometimes we encounter situations where the PHP code displays garbled file names, which may be due to encoding problems. Before solving this problem, we must first understand the common encoding formats. Common encoding formats include UTF-8, GB2312, etc. It should be noted that different encoding formats will affect the way file names are displayed.

If the file name displayed in your PHP code is garbled, you can try the following solutions:

1. Make sure the encoding format of the PHP file itself is correct
   First make sure the PHP file The encoding format itself is correct, and it is usually recommended to use UTF-8 encoding format. The file encoding format can be viewed and modified in the editor.

2. Set HTTP header information
   In PHP code, you can specify the encoding format of the page by setting HTTP header information. Before the file is output, you can use the header() function to set the Content-Type header information, for example:

   header('Content-Type: text/html; charset=utf-8');

3. Make sure the encoding format of the file system is correct
   Sometimes the file system The encoding format may affect the display of file names. On the basis of ensuring that the encoding format of the PHP file itself is correct, you can try to use the iconv or mb_convert_encoding function to convert the encoding format of the file name, for example:

   $filename = "中文文件名.txt";
   $filename = iconv("UTF-8", "GB2312", $filename);
   echo $filename;

4. Use the urlencode function to encode
   If none of the above methods can solve the problem, you can try to use the urlencode function to encode the file name, for example:

   $filename = "中文文件名.txt";
   $filename = urlencode($filename);
   echo $filename;

Through the above method, you can solve the problem of garbled file names displayed by PHP code. In practical applications, you can choose the appropriate method to deal with the garbled problem according to the specific situation to ensure the normal display of the file name.

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