PERL to PHP help please

I am looking to write a script that takes in a user id and a password, matches them with credit card number and other info from a MySQL database and then sends it with a GET form command to a remote cgi script. <form action="cgi script" method="get"> //input user id //input password <?php //connect to dbase //find matching order info //prepare string for get submit ?> //submit button </form> How do I submit a certain string as a "GET" to a certain remote cgi? Am I making sense at all? How do I choose what gets sent out as a "GET"? How can I make it secure? Here is the PERL example that the payment gateway gives: $Postvals = "merchant=$merchantname&password=$password&operation_type=$operation_type&"; $Postvals .= "orderid=$orderid&total=$total&cardname=$cardname&"; $Postvals .= "cardnum1=$cardnum1&cardnum2=$cardnum2&cardnum3=$cardnum3&cardnum4=$cardnum4&"; $Postvals .= "cardexpm=$cardexpm&cardexpy=$cardexpy&nameoncard=$nameoncard&cardstreet=$cardstreet&"; $Postvals .= "cardcity=$cardcity&cardstate=$cardstate&cardzip=$cardzip&cardcountry=$cardcountry"; use LWP::UserAgent; use Crypt::SSLeay; $ua = new LWP::UserAgent; $ua->agent("SSL/0.1"); my $req = new HTTP::Request('POST', 'https://www.goemerchant7.com/cgi-bin/gateway/gateway.cgi'); $req->content_type('application/x-www-form-urlencoded'); $req->content($Postvals); my $res = $ua->request($req); $Result = $res->content; ($success, $authcode, $authresponse, $avscode, $oid) = split(/\|/, $Result); Any ideas? Thank in advance, Shay Horowitz Shoguntrader www.shoguntrading.com