16
MySQL entries in PHPInfo:
On the Core-1 box:
In Configure Command section: '--with-mysql=shared,/usr'
In dbx Supported Databases: MySQL
On the Core-2 box:
In Configure Command section: '--with-mysql=shared,/usr'
In Additional INI Information parsed: /etc/php.d/mysql.ini,
In Apache2Handler - loaded modules: mod_auth_mysql
In dbx Supported Databases: MySQL
In MySQL - 2 blocks (MySQL Support and Directives) describing MySQL variables.
As you can see, there is a significant difference between the way these two boxes implemented PHP with MySQL.