cannonical SO comment for mysql_* users

comment.txt

Please, don't use `mysql_*` functions for new code. They are no longer maintained and the community has begun the [deprecation process](http://news.php.net/php.internals/53799). See the [**red box**](http://php.net/mysql-connect)? Instead you should learn about [prepared statements](http://en.wikipedia.org/wiki/Prepared_statement) and use either [PDO](http://php.net/pdo) or [MySQLi](http://php.net/mysqli). If you can't decide, [this article](http://php.net/mysqlinfo.api.choosing) will help to choose. If you care to learn, [here is good PDO tutorial](http://wiki.hashphp.org/PDO_Tutorial_for_MySQL_Developers).