<?php 
$url = \'http://www.yourdomain.com/accountok.php\'; // Where to redirect 
//the user after that form has been processed successfully. Now we will 
//get the values sent by the form: to get a value you can generally access 
//it with $_POST[\'valuename\'] where valuename is the string you put into 
//the value of the the field you are accessing
$user = $_POST[\'username\'];//get username from form
$pass = $_POST[\'password\'];//get password from form
$pass2 = $_POST[\'password2\'];//get password2 from form
$name = $_POST[\'name\'];//get name from form
$domain = $_POST[\'domain\'];//get domain from form
$zip = $_POST[\'zip\'];//get zip from form
$city = $_POST[\'city\'];//get city from form
$email = $_POST[\'email\'];//get email from form
$state = $_POST[\'state\'];//get state from form
$country = $_POST[\'country\'];//get country from form
$address = $_POST[\'address\'];//get address from form
$phone = $_POST[\'phone\'];//get phone from form

//now that we have picked all the values we need from the form we can 
//start checking them one at a time

//PASSWORD VERIFICATION
if (($pass)!=($pass2)) //if the values stored in the 2 variables are 
//different we redirect the users to a previously created error page
{
	header("Location: error-pwverify.php"); //the user will be sent to this page
	Die();
}
//EMAIL VERIFICATION
function CheckMail($email) // this function checks if the email format is ok, 
//if the chars are allowed, if there are enough chars in the TLD learn more 
//about eregi function here: http://www.php.net/manual/en/function.eregi.php
{
if(eregi("^[0-9a-z]([-_.]?[0-9a-z])*@[0-9a-z]([-.]?[0-9a-z])*\.[a-z]{2,4}$",$email)) 
	{ 
		return true;
	}
	else 
	{ 
		return false; 
	}
}
if ((empty($email)) || (!CheckMail($email))) //here we check if the email is 
//empty and if the previous function controls are passed, if there are 
//errors the user is sent to a previously prepared custom error page
{
	header("Location: error-email.php"); //the user will be sent to this page
	Die();
}
//ZIP CODE VERIFICATION
function CheckZip($zip) 
{
	if (eregi("[0-9]", $zip)) //here we check if the ZIP code contains only numbers
	{
		return true;
	}
	else 
	{ 
		return false; 
	}
}
if ((empty($zip)) || (!CheckZip($zip)) || (strlen($zip)!=5))
//if the ZIP code is empty, the CheckZip function fails or the code length is 
//different from 5 chars the user is sent to a previously prepared custom error page
{
	header("Location: error-zip.php"); //the user will be sent to this page
	Die();
}
//NAME VERIFICATION
//the name and the following fields don\'t allow us to make strict 
//verifications by the way the user has to have a name so if the name 
//is empty the user is sent to a previously prepared custom error page
if (empty($name))
{
	header("Location: error-name.php"); //the user will be sent to this page
	Die();
}
//CITY VERIFICATION
//exactly the same as the name verification
if (empty($city))
{
	header("Location: error-city.php"); //the user will be sent to this page
	Die();
}
//STATE/PROVINCE VERIFICATION
//exactly the same as the name verification
if (empty($state))
{
	header("Location: error-state.php"); //the user will be sent to this page
	Die();
}
//COUNTRY VERIFICATION
//exactly the same as the name verification
if (empty($country))
{
	header("Location: error-country.php"); //the user will be sent to this page
	Die();
}
//ADDRESS VERIFICATION
//exactly the same as the name verification
if (empty($address))
{
	header("Location: error-address.php"); //the user will be sent to this page
	Die();
}
//USER AND PASSWORD LENGTH CHECK
$min_lenngth = 6; //this value is the minimal length that we desire our passwords 
//to be if the username or the password is shorter than 6 chars the user is sent 
//to a previously prepared custom error page
if(strlen($user) < $min_lenngth || strlen($pass) < $min_lenngth)
{
	header("Location: error-pwshort.php"); //the user will be sent to this page
	Die();
}
//NOTE: insert here the code between //****************// and //****************// 
//in the following part of the tutorial if you want to add these values to your 
//database
//NOTE:don\'t use the following code line (erase it) if you inserted here the code 
//to add the values to the database
//if all our checks are passed we go to the url assigned at the top to the variable url
echo <META HTTP-EQUIV=Refresh CONTENT="0; URL=.$url.">;
?>