if else statement help

[system]

I want to redirect the user to one URL when selecting “9th Grade”, and redirect the user to another URL when selecting any of the other grades. What should the PHP ‘if/else’ statement be in the configuration form handler?

<select name="Grade" id="Grade"> <option> 6th Grade </option> <option> 7th Grade </option> <option> 8th Grade </option> <option> 9th Grade </option> <option selected="selected"> </option> </select>

[php]//not sure what should be here
if (){
$redirect_url=“my url 1”;}
else (){
$redirect_url=“my url 2”;}
//not sure what else I am missing[/php]

[wilson382]

[php]

<?php if ((isset($_REQUEST['Grade'])) && (($_REQUEST['Grade']) == 9)) { header("location: nine_grade.php"); } else { header("location: not_Nine_grade.php"); } ?>

[/php]