PHP: How do I access a database?

Before we can do anything with a database, we need to talk to it. And to talk to it,
we must make a database connection. Logical, isn’t it?
Solution
Here’s how we connect to a MySQL database on the localhost:

$dsn = 'mysql:host=localhost;dbname=arabic;'; 
$user = 'root'; 
$password = ''; 
try 
{
 $dbh = new PDO($dsn, $user, $password); 
 echo "koneksi sukses";
} 
catch (PDOException $e) 
{
 echo 'Connection failed: ' . $e->getMessage(); 
}