Php - Your PHP installation appears to be missing the MySQL extension which is required by WordPress

Question

How do I fix the error below?

Your PHP installation appears to be missing the MySQL extension which is required by WordPress.

I

Answer 1

I'm using Fedora 25

sudo dnf search php | grep mysql

php-mysqlnd.x86_64 : A module for PHP applications that use MySQL databases
php-pear-MDB2-Driver-mysqli.noarch : MySQL Improved MDB2 driver mysqli

sudo dnf install php-mysqlnd.x86_64

Answer 2

Make sure you tick Mysqli and mysqlnd as shown in the screenshot

Answer 3

It maybe the reason The php mysql api is deprecated. if your using below < PHP5.5 just update in your server to 5.6 and above.

Answer 4

This issue was due to lack of database. If it is a fresh installation, you need to manually create one and assign user with privileges.

Please check in wp-config.php for any bad configurations and make sure that database and tables are not missing or corrupted.

Answer 5

For php 5.6 sudo apt-get install php5.6-mysqlnd-ms and restart your apache

/etc/init.d/apache2 restart

Answer 6

On Oracle Linux 7.x running PHP version 7.3.x you need to run sudo yum install php-mysqlnd in order to install the missing MySQL extension for PHP.

Remember to restart PHP and or your server for the changes to take effect.