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<?php

/**
 * @author Jason
 * @copyright 2010
 */

$submit = $_POST['submit'];

$fullname = strip_tags($_POST['fullname']);
$username = strip_tags($_POST['username']);
$password = md5($_POST['password']);
$repeatpassword = md5($_POST['repeatpassword']);

$date = date("Y-m-d");

if ($submit)
{

    $connect = mysql_connect("localhost","root","jason");
    mysql_select_db("usersystem");

    $namecheck = mysql_query("SELECT * FROM users WHERE username='$username'");
    $count = mysql_num_rows($namecheck);

    if ($count!=0)
    {
        die ("Username already taken");
    }

if ($fullname&&$username&&$password&&$repeatpassword)
{

    if ($password==$repeatpassword)
    {

        if(strlen($username)>25||strlen($fullname)>25)
        {
            echo "Username and Full name have to be under 25 characters.";
        } else

            if (strlen($password)>25||strlen($password)<6)
            {
                echo "Password must be between 6 to 25 characters!";
            } else

            {

                $password = md5($password);
                $repeatpassword = md5($repeatpassword);

                $connect = mysql_connect("localhost","root","jason");
                mysql_select_db("usersystem");

                $queryreg = mysql_query("

                INSERT INTO users VALUES('','$fullname','$username','$password','$date')

                ");

                die ("You have been registered!");

            }

        } else
            echo "Passwords don't match!";

    } else
        echo "Fill in all fields!";

}

?>

<html>

<form action="register.php" method="POST">

    Full Name: <input type="text" name="fullname"/><br />
    Username: <input type="text" name="username"/><br />
    Password: <input type="password" name="password"/><br />
    Repeat Password: <input type="password" name="repeatpassword"/><br />

    <input type="submit" name="submit" value="Register"/>

</form>

</html>