Ok. I have searching on this site Since August 24 2011.(not that it matters) for a way to display files that have been uploaded by a user. I have my form on the admin side a
you can use one column as auto_increament
when you are inserting a new user than you can get sum of already registered users using this query
$qry = mysql_qyery("select * from users
");
and you can get user count by using
$count = mysql_num_rows($qry); so after this you insert a new user and his ID will be
$count1 = $count+1; $id = 'F'.$count1;