PHP PDO vs normal mysql_connect

Question

Should I use php PDO or normal mysql_connect to execute database queries in PHP?

Which one is faster?

One of the big benefits of PDO is that the interface is

Answer 1

The mysql_connect function is deprecated as of PHP 5.5.0 and, as with most deprecated features, will be removed. Therefore, prefer using PDO_MySQL (or another alternative MySQLi ) over mysql_connect.

Source: http://php.net/manual/en/function.mysql-connect.php