PHP State Form Validation

statevalidate.php

<?php
/*

TITLE: PHP State Form Validation
AUTHOR: Seth Krasnianski
PURPOSE: Validates that HTML form input are set, and abide by rules of state expungement laws.

*/

	$default = 'State'; // Default for state select input
	$default_conv = 'Select One'; // Default for conviction input

        // State array for matching with state select
	$stateList = Array('Arizona', 'California', 'Connecticut', 'Florida', 'Illinois', 'Michigan', 'Minnesota', 'Nevada', 'New Hampshire', 'New Jersey', 'New York', 'Ohio', 'Pennsylvania', 'Rhode Island', 'Texas', 'Utah', 'Washington');
	
	$state = $_POST['state']; // Sets state variable
	$conviction = $_POST['conviction']; // Sets conviction variable
	
        // Sends state form again if state is default choice
	if ((!isset($state) || ($state == $default))) {
	    include ('stateselect.inc.php');

        // Sends next form to validate convictions	
	} else {

                // Checks if valid conviction is chosen
		if ((isset($conviction)) && ($conviction != $default_conv)) {

                                // If conviction is "Diversion / Deferred" user is not eligible
				if($_POST['conviction'] == "diversionDeferred" ) {
					include ('../header.php');
					echo "Not Eligible: We are sorry, but you are not eligible at this time.";
					include('../sidebar.php');

                                // If conviction is set to anything but "Diversion / Deffered" or default, display coresponding questions based on conviction
				} else {

                                // include generates appropriate questions
				include('stateform.inc.php');

				}

                // Case select was not applicable, choose again
		} else {
			include('caseSelect.inc.php');
		}
	}

?>