mysql_connect() takes 3 params
localhost
ur database user name generally 'root'
db pass
use this snippet and let us know if it works
<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
// mysql_user - put ur db user name
// mysql_password - put ur db password
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
?>