What should I do if the dedecms website suddenly appears garbled?

When the dedecms website suddenly appears garbled, it may be caused by incorrect database character set settings, incorrect web page encoding settings, file encoding problems, etc. The following are some common processing methods and code examples:

1. Check the database character set settings:
   In the dedecms configuration file (/data/common.inc.php), find Configuration parameters related to database connection, check whether the character set of the database connection is set correctly. For example, make sure the database character set is set to UTF-8:

   $db_host = 'localhost';
   $db_user = 'username';
   $db_pwd = 'password';
   $db_name = 'database_name';
   $db_prefix = 'dede_';
   $db_charset = 'utf8';

2. Check the web page encoding settings:
   In the template file of dedecms, make sure the web page encoding is set to UTF-8. Add the following code in the tag:

   <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

3. Check the file encoding problem:
   In the template file of dedecms, make sure the file encoding is UTF-8. Open the file with a text editor and select UTF-8 encoding when selecting "Save As".
4. Clear the cache:
   Sometimes, the dedecms cache file may cause the page to be garbled. You can try clearing the dedecms cache file and regenerating the cache.

5. Use PHP code to convert encoding:
   If none of the above methods work, you can try to use PHP code to convert the output content to UTF-8 encoding:

   $output = mb_convert_encoding($output, 'UTF-8', 'GB2312');
   echo $output;

Through the above methods, you can try to solve the problem of sudden garbled characters on the dedecms website. If the problem persists, it is recommended to contact the website developer or dedecms official customer service for further help and processing.

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