captcha.php

<?php
/* 
  captcha.php
  jQuery Fancy Captcha
  www.webdesignbeach.com
  
  Created by Web Design Beach.
  Copyright 2009 Web Design Beach. All rights reserved.
*/


$check =  false;
session_start(); /* starts session to save generated random number */

/* this compare captcha's number from POST and SESSION */
if($_SERVER['REQUEST_METHOD'] == "POST" && isset($_POST['captcha']) && $_POST['captcha'] == $_SESSION['captcha'])
	{
		//echo "Passed!"; /* YOUR CODE GOES HERE */ 
		unset($_SESSION['captcha']); /* this line makes session free, we recommend you to keep it */
		$check = true;
		
	} 
elseif($_SERVER['REQUEST_METHOD'] == "POST" && !isset($_POST['captcha']))
	{
		$check = false;
		
		
	}
/* in case that form isn't submitted this file will create a random number and save it in session */
else
	{
		$rand = rand(0,4);
		$check = false;
		$_SESSION['captcha'] = $rand;
		echo $rand;
		
		
	}
	

?>