I am not experienced with PHP in the slightest, but this form should send information from the page you select it on to another page:
<form name="form1" method="post" action="nextpage.php">
<select name="form">
<option value="bike">BMX 3000</option>
</select>
<input type="submit">
</form>
The next page has this code:
<html>
<body>
<center>You selected <?php echo $_POST['form']; ?></center>
</body>
</html>
Would love some help!