Getting details from MySQL DB with PHP

How to print details from MySQL with PHP :

Note : Replace red marked details:

<?php
mysql_connect("hostname", "username", "password") && mysql_select_db("dbname") or die;
$details = mysql_query("select * from users");
while ($detail = mysql_fetch_assoc($details))
{
$name = $detail['name'];
echo "$name";
}
?>