EnglishThe "Connection Information" error in WordPress typically occurs when WordPress is unable to establish a connection to the database. This can happen due to a variety of reasons, such as incorrect database credentials, a corrupted database, or issues with the hosting server.
Here's what you can do to troubleshoot and fix this issue:
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Check Database Credentials:
- Verify that the database username, password, host, and database name in your
wp-config.phpfile are correct. These details should match the information provided by your hosting provider.
- Verify that the database username, password, host, and database name in your
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Verify Database Existence:
- Ensure that the database specified in your
wp-config.phpfile actually exists on your hosting server.
- Ensure that the database specified in your
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Check Database Server:
- Confirm that the database server specified
wp-config.phpis correct. It should be something like "localhost" or a specific server address provided by your hosting provider.
- Confirm that the database server specified
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Test Database Connection:
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You can create a simple PHP script to test if your website can connect to the database. Create a new file (e.g.,
test_db.php) and add the following code:php
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$link = mysqli_connect('localhost', 'username', 'password'); if (!$link) { die('Could not connect: ' . mysqli_error()); } echo 'Connected successfully'; mysqli_close($link); -
Replace
'localhost','username', and'password'with your actual database credentials. Upload this file to your server and access it through your browser (e.g.,http://yourwebsite.com/test_db.php). If it successfully connects, you should see the message "Connected successfully."
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Check for Server Issues:
- Sometimes, server-related issues can cause database connection problems. Contact your hosting provider to see if there are any server-wide problems.
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Repair and Optimize Database:
- If the database itself is corrupted, you can try repairing and optimizing it. You can use tools like phpMyAdmin or a plugin like WP-Optimize for this.
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Check Database User Privileges:
- Ensure that the database user specified in
wp-config.phphas the necessary privileges to access and modify the database.
- Ensure that the database user specified in
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Contact Hosting Support:
- If none of the above steps work, reach out to your hosting provider's support team. They should be able to help diagnose and resolve the issue.
Remember to back up your wp-config.php file before making any changes, and be cautious when making changes to the database, especially if you're not familiar with it.
