Flash to PHP to Mysql help.

[hooligan2001]

Hey peeps, ive been fiddling with mysql and php on a newbie level, and i was wondering if you could help me out. I was just wondering how things work. How im supposed to pack things and send it to the next thing. Like how do i pack and send a variable called numCo = 7; and send it to php. And then have php insert that var into mysql.

I found this in a tutorial i was working with and realise its how you submit the info to my sql

        //  Setup query
        $q = "INSERT INTO `dbUsers` (`username`,`password`,`email`) "
            ."VALUES ('".$_POST["username"]."', "
            ."PASSWORD('".$_POST["password"]."'), "
            ."'".$_POST["email"]."')";
        //  Run query
        $r = mysql_query($q); 

But how do i set a variable up in flash to send to php.

Its really urgent ive been trying to understand this for a while but i keep finding different ways people do it and im getting confussed.