Why is phpMyAdmin Failing on Ubuntu 12.04 Due to a Missing mysqli Extension?

phpMyAdmin Issue: Missing Extension mysqli

Problem:

On Ubuntu 12.04, phpMyAdmin fails to function due to a missing mysqli extension, despite installing Apache2, PHP5, MySQL, and phpMyAdmin. The phpinfo() function does not display any information related to mysqli or mysql.

Solution:

Latest versions of phpMyAdmin rely on the mysqli extension, which differs from the older mysql extension. To resolve the issue:

For PHP 7.3:

sudo apt-get install php7.3-mysqli

For PHP 8:

sudo apt-get install php8.0-mysqli

These commands will install a package containing both the mysqli and mysql extensions.

Next, edit your php.ini file and add the following line under the "Dynamic Extensions" section:

extension=mysqli.so

Restart Apache with:

sudo systemctl restart apache2

Authenticate if required.

The issue should now be resolved. If not, clear the browser cache.

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