$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = 'asdf';

$link = mysql_pconnect($dbhost, $dbuser, $dbpass);

if (!$link) {
    die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully <br><br>';

echo "$dbhost , $dbuser , $dbpass <br><br>";