MySQL and MySQLi PHP extension stopped working after updating alt-php-config

Issue

After upgrading:

Updated alt-php-config-1-64.el7.noarch                      @alt-common
Update                 1-65.el7.noarch                      @alt-common

Websites began reporting that the PHP MySQL extension was missing or not active. Although it shows in PHP Selector as enabled, it is not displayed in phpinfo pages. 

Environment

• Plesk
• alt-php

Solution

The fix has been released to our testing repository, to update, please proceed as follows:

yum update alt-php-config --enablerepo=cloudlinux-updates-testing

Cause

The recent update introduced changes under ALTPHP-2180, which specifically modified how mysql.so is processed for PHP 5.x in Plesk environments

Useful links

https://changelog.cloudlinux.com/search?value=alt-php-config-1-65