Why is phpMyAdmin Showing \'The mysqli extension is missing\' on Ubuntu 12.04 and How Can I Fix It?

Missing mysqli Extension: Troubleshooting phpMyAdmin on Ubuntu 12.04

phpMyAdmin, a popular PHP-based database management tool, is an essential tool for managing MySQL databases. However, encountering the error "The mysqli extension is missing" can hinder its functionality. This issue arises when the necessary extension is not installed or enabled within the PHP configuration.

Understanding the Error

phpMyAdmin primarily relies on the MySQL Improved extension (mysqli) for database interactions. Recent versions of phpMyAdmin mandate its use, rendering the older mysql extension obsolete.

Fixing the Issue

To resolve this issue, follow these steps:

1. Install the mysqli Extension:

   For PHP 7.3:

   sudo apt-get install php7.3-mysqli

   For PHP 8:

   sudo apt-get install php8.0-mysqli

2. Modify the php.ini File:

   Open the php.ini file and ensure that the following line is present and uncommented:

   extension=mysqli.so

3. Restart Apache:

   sudo systemctl restart apache2

4. Clear the Browser Cache:

   If the issue persists, clear the cache of your browser.

Additional Considerations

• The newly installed package will contain both the old mysql extension and the mysqli extension.
• Authenticate with your system credentials when prompted.
• If the error persists, try enabling the mysqli extension in the php.ini file under the "Dynamic Extensions" section.

By following these steps, the mysqli extension will be installed, enabled, and properly configured. This will restore the functionality of phpMyAdmin, allowing you to manage your MySQL databases seamlessly.

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