How to use PDO with PHP and MySQL
$db = new PDO('mysql:host=localhost;dbname=mydb;', 'username', 'password');
$q="select my query";
$db->query($q);
$db = new PDO('mysql:host=localhost;dbname=mydb;', 'username', 'password');
$q="select my query";
$db->query($q);