$_POST['username'] = mysql_real_escape_string($_POST['username']);
$_POST['password'] = mysql_real_escape_string($_POST['password']);
if ($_POST['username'] == "" || $_POST['password'] == "" ){
Then you tell them to fill out both forms then you check if it matches what is in the database. You should really know this.
I am very good at PHP which is why I joined to try to get hired! I want to start making or fixing stuff for people for around $10 each hour. I can code PHP and MYSQL and would like to start ASAP. So if anyone is interested private message me, I would like to get paid every 2 weeks.