How to solve the problem when the dedecms web page content suddenly displays garbled characters?

[Title] How to solve the problem when the dedecms web page content suddenly displays garbled characters?

In the process of website construction and maintenance, if you use dedecms as the content management system, you may occasionally encounter the situation where the web page content suddenly displays garbled characters. This problem may be caused by a variety of reasons, such as encoding setting errors, database character set issues, etc. This article will introduce some common solutions and give specific code examples.

1. Check the database character set and collation set

First, we need to check whether the database character set and collation set are set correctly. dedecms uses the utf8 character set by default. If the database uses other character sets, it will cause garbled characters. We can check and modify the character set and proofreading set of the database through phpMyAdmin or other database management tools. The following is an example of a SQL statement to modify the database character set to utf8:

ALTER DATABASE `your_database_name` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

2. Check the dedecms configuration file

Secondly, we need to check the dedecms configuration file, making sure its character set is set correctly. A file named data/common.inc.php can be found in the root directory of dedecms. We can view the database configuration information in this file to confirm whether the character set setting is correct. The following is a sample code:

$dsql->SetEscapeMode('GetDBUseDSN'); // 使用 DSN 模式
$dsql->SetMysqlVersion('5.x'); // MySQL 版本
$dsql->SetDedoCharset('utf8'); // 网站模式
$dsql->initDb($dbhost, $dbuser, $dbpwd, $dbname, '', $pconnect);

3. Set web page encoding

In addition, we also need to ensure that the encoding of the web page is set correctly. You can add the following code to the head of the web page to specify the encoding of the web page:

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

4. Repair garbled data

Finally, if the content of the web page appears Garbled data, you can try to repair the garbled data. You can use phpMyAdmin or other database management tools to find and repair garbled data. The following is an example of a SQL statement to repair garbled data:

UPDATE `your_table_name` SET `your_column_name` = CONVERT(BINARY CONVERT(`your_column_name` USING latin1) USING utf8);

To summarize, when the dedecms web page content suddenly displays garbled code, we can check the database character set, modify the configuration file, set the web page encoding and repair the garbled data, etc. method to solve this problem. I hope the above solutions and code examples can help webmasters who encounter similar problems.

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