MySQL is an open-source, relational database management system. If your PHP code uses MySQLi, use the MySQLi tag instead.
MySQL is a relational database management system that runs as a server providing multi-user access to a number of databases.
Deprecation of mysql_ functions
PHP functions that start with mysql_ have been deprecated as of PHP 5.5.0. If you are in a position to do so, please consider updating your code to use the mysqli_ or PDO extensions instead.
