Change this;

$query=mysql_query("select * from users where userId='$uname' and pwd ='$pwd' ");


to: 

$query=mysql_query("SELECT * FROM users WHERE pwd ='$pwd' AND (userId = '$uname' OR PhoneNum = '$uname')");


What this does it will take both $uname value and search both Userid column and Phone Num column for a match. Please note that PhoneNum is the column name in your table. 

Also your database is at risk for attack. MYSQL Injections. 

How to make login with userid or mobile number using php mysql
I replaced the stock hd with a samsung ssd (840) about 18 months ago. It died last week. I tried putting the original HD back in and the computer won't recognize it. Even when I hold down the option key when booting nothing happens. When I remove the disk and connect it via USB it boots up fine as an external hard drive. Any reason why that would be?
