try {
//$dbh = new PDO("mysql:host=$hostname;dbname=animals", $username, $password);
$dbconn= new PDO("pgsql:host=$hostname;dbname=pgsdemo1", $username, $password);
/*** echo a message saying we have connected ***/
echo 'Connected to database<br />';

/*** The SQL SELECT statement ***/
$sql = "SELECT * FROM emp1 ORDER BY fname";

/*** fetch into an PDOStatement object ***/
$stmt = $dbconn->query($sql);

/*** echo number of columns ***/
$result = $stmt->fetch(PDO::FETCH_NUM);
// $result = $stmt->fetch(PDO::FETCH_ASSOC);
/*** loop over the object directly ***/
foreach($result as $key=>$val)
{
echo $key.' - '.$val.'<br />';
}

/*** close the database connection ***/
$dbconn= null;
}
catch(PDOException $e)
{
echo $e->getMessage();
}