If you are seeing the error "Cannot load mysql extension. Please check your PHP configuration" when trying to access phpMyAdmin, it means that the PHP MySQL extension is not installed or is not enabled in your PHP configuration.
To fix this error, you will need to install the PHP MySQL extension and enable it in your PHP configuration.
To install the PHP MySQL extension on a Debian or Ubuntu system, you can use the following command:
sudo apt-get install php-mysql
On a CentOS or Red Hat system, you can use the following command:
sudo yum install php-mysql
Once the extension is installed, you will need to enable it in your PHP configuration. This is typically done by adding the following line to your php.ini file:
extension=mysql
You will need to restart your web server after making this change to apply the new configuration.
For more information on installing and configuring the PHP MySQL extension, you can consult the PHP documentation or seek guidance from the PHP community.
If you are still having issues after installing and enabling the PHP MySQL extension, it is possible that there may be other issues with your PHP configuration or with your MySQL server. You may want to check the error logs or seek guidance from the PHPMyAdmin community for further assistance.