<?php
$dbhost = 'localhost'; // Database Host
$dbname = 'ds'; // Database Name
$dbuser = 'lee'; // User Name
$dbpass = 'incainca'; // Password
$dbprefix = 'ds_site_'; // Table Prefix

mysql_connect($dbhost, $dbuser, $dbpass) or die(mysql_error());
mysql_select_db($dbname) or die(mysql_error());

function queryMysql($query)
{
    $result = mysql_query($query) or die(mysql_error());
    return $result;
}

function destroySession()
{
    $_SESSION=array();
    if (session_id() != "" || isset($_COOKIE[session_name()]))
    setcookie(session_name(), '', time()-2592000, '/');
    session_destroy();
}

function different_user()
{
    $_SESSION=array();
    if (session_id() != "" || isset($_COOKIE[session_name()]))
    setcookie(session_name(), '', time()-2592000, '/');
    session_destroy();
    die(header("Location: error.php"));
}

function startSession($user, $pass)
{
    $_SESSION['user'] = $user;
    $_SESSION['pass'] = $pass;
    $_SESSION['check'] = md5($_SERVER['REMOTE_ADDR'] . $_SERVER['HTTP_USER_AGENT']);
    if (!isset($_SESSION['initiated']))
    {
        session_regenerate_id();
        $_SESSION['initiated'] = 1;
    }
    if (!isset($_SESSION['count'])) $_SESSION['count'] = 0;
    else ++$_SESSION['count'];
    die(header("Location: index.php"));
}

function sanitizeString($var)
{
    $var = strip_tags($var);
    $var = htmlentities($var);
    $var = stripslashes($var);
    return mysql_real_escape_string($var);
}

function md5_password($pass)
{
    $salt1 = 'g^n*';
    $salt2 = 'p£x!';
    return md5("$salt1$pass$salt2");
}

function new_rand_pw()
{
    $burger = '';
    //String
    $newpw = 'abcdefghijklmnopkrstuvwxyzABCDEFGHIJKLMNP123456789';
    //String length
    $newpwlen = strlen($newpw);
    for ($i = 0; $i <= 8; $i++){
        //Random number between 1 and string length
        $randlet = rand(1, $newpwlen);
        //Single character from string added to $burger
        $burger .= substr($newpw, $randlet, 1);
    }
    return $burger;
}

function val_username($v_user)
{
    $userOk = preg_replace('/[a-zA-Z0-9]/', '', $v_user);
    if ($v_user == "")
    {
        return "No username was entered.<br />";
    }
    elseif (!empty($userOk))
    {
        return "Username must contain only a-z A-Z 0-9.<br />";
    }
    elseif (strlen($v_user) < 6)
    {
        return "Username is too short.<br />";
    }
        elseif (strlen($v_user) > 16)
    {
        return "Username is too long.<br />";
    }
}

function val_password($v_pass, $v_conpass)
{
    if($v_pass == "" || $v_conpass == "")
    {
        return "Please complete both password fields.<br />";
    }
    elseif ($v_pass != $v_conpass)
    {
        return "Password fields did not match.<br />";
    }
    elseif (strlen($v_pass) < 6)
    {
        return "Password is too short. $v_pass<br />";
    }
    elseif (strlen($v_pass) > 16)
    {
        return "Password is too long.<br />";
    }
}

function val_email($v_email)
{
    if ($v_email == "")
    {
        return "Please enter an email address";
    }
    else
    {
        // Create the syntactical validation regular expression
        $regexp = "/^([_a-z0-9-]+)(\.[_a-z0-9-]+)*@([a-z0-9-]+)(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/";

        $msg = "Invalid email address.";

        // Validate the syntax
        if (preg_match($regexp, $v_email))
        {
            $pieces = explode("@",$v_email);
            // Validate the domain sends mail
            if (!getmxrr($pieces[1],$mxrecords))
            return $msg;
        }
        else
        {
            return $msg;
        }
    }
}

function val_to($v_to)
{
}

function val_subject($v_sub)
{
    if ($v_sub = '')
        return "Please enter a subject<br />";
}

function val_message($v_mes)
{
    if ($v_mes = '')
        return "Please write a message<br />";
}
?>