PHP / Email form

Hi, I have made a shopping kart for a web site, in flash...and I have it so when the shopping kart is submitted...all the order details (variables) are sent to a PHP file that sends the order to the businesses email. My main problem is with the PHP file. I dont know how to use IF THEN ELSE statements within it. At the moment I have it so that is sends 12 items details even if the user has only ordered 5 or so. (so there is allot of blank items) I want it so that it sends the exact amount of items ordered (and their details) to the businesses email. Here is the php file (as a .txt): http://chezanziar.com.au/PHP.txt As you can see....at the moment it prints out 12 items no matter what the case. I was thinking I could send a variable to the PHP file (along with the other information) that says how many items have been ordered....then I could use some kind of loop (FOR loop) to print the exact amount.......the problem is I dont know how to use FOR loops and IF THEN ELSE statements within PHP.......is it possible to use these statements (FOR, IF) within the $EmailBody = ""?? Please help. Thank you. Find local movie times and trailers on Yahoo! Movies. http://au.movies.yahoo.com