<?
$dsn = 'mysql:dbname=test;host=hostname';
$user = 'username';
$password = 'Password';
try {
    $dbh = new PDO($dsn, $user, $password);
    echo "Connected";
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
}

$id = 1;
$sth = $dbh->prepare("SELECT * FROM testprepare where id = :id");
$sth->bindParam(':id',$id, PDO::PARAM_INT);
$sth->execute();
$result = $sth->fetchAll();

print_r($result);

?>