How do I install the pdo_mysql PHP extension?

Question

How do I install the pdo_mysql PHP extension?

Answer

The pdo_mysql PHP extension is installed and enabled when installing the mysqlnd PHP extension.

# repoquery -q --provides ea-php*-php-mysqlnd| grep 'pdo_mysql '
ea-php54-php-pdo_mysql = 5.4.45-73.73.1.cpanel
ea-php55-php-pdo_mysql = 5.5.38-56.56.1.cpanel
ea-php56-php-pdo_mysql = 5.6.40-18.18.1.cpanel
ea-php70-php-pdo_mysql = 7.0.33-20.20.1.cpanel
ea-php71-php-pdo_mysql = 7.1.33-11.11.1.cpanel
ea-php72-php-pdo_mysql = 7.2.34-5.5.1.cpanel
ea-php73-php-pdo_mysql = 7.3.27-1.1.4.cpanel
ea-php74-php-pdo_mysql = 7.4.16-2.2.2.cpanel
ea-php80-php-pdo_mysql = 8.0.3-2.3.2.cpanel

To install the mysqlnd PHP extension, please see: How to install a PHP extension in WHM