PHP is like CFML in that you don't have to specify if it's from the querystring or the form. You just say go get me this variable and it gets it.
Below in form.php you can use get or post as the form method and get the same result in action.php
form.php
<form action="action.php" method="post">
Your name: <input type="text" name="name">
You age: <input type="text" name="age">
<input type="submit">
</form>
action.php
Hi <?php echo $name; ?>.
You are <?php echo $age; ?> years old.
PS >>> I hope you figured it out since it's been 3 months, but this has been spidered by google so I figure I can answer it and help out people searching Yahoo/Google for it.