Fix Error: Your PHP installation appears to be missing the MySQL extension which is required by WordPress

"Your PHP installation appears to be missing the MySQL extension which is required by WordPress”Is an error encountered by many blog and website owners with WordPress.
This is not a cause for concern. Lack of MySQL extension from PHP is typical of operating systems installed from scratch, VPS or dedicated servers, where PHP extensions were not part of the installation package. This problem is present on both Ubuntu and the CentOS. In this scenario, the problem is solved very simply with a update PHP and module installation "PHP MySql".
Update PHP and MySQL extension installation on Ubuntu

apt-get update
apt-get install php-mysql

Update PHP and MySQL extension installation on CentOS

yum update
yum install php70w-mysql

After this step, restart the Apache service or Nginx.

I also came across the scenario in which although the MySQL extension exists in PHP, a blog created on WordPress displayed the error "Your PHP installation appears to be missing the MySQL extension which is required by WordPress”. Most of the time, the error occurs during installation WordPress. This time, however, he appeared on a blog that had been active for several years.
In this situation, I found that the problem is not with the PHP modules, but with the very old version of WordPress, which is no longer compatible with PHP 7.4.4RC1. A simple upgrade WordPress the latest version fixed the error.

Passionate about technology, I enjoy writing on StealthSettings.com since 2006. I have a rich experience in operating systems: macOS, Windows, and Linux, as well as in programming languages and blogging platforms (WordPress) and for online stores (WooCommerce, Magento, PrestaShop).

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