$pass = false;
    /*
     * owner is user
     */
    if (posix_geteuid() == getmyuid())
    {
        if (fileperms("tmp") & 0700) == 0700)
        {
            $pass = true;
            if (fileperms("tmp") & 0077))
            {
                $warningMessages[] = 'You may want to restrict "group" and "other" access to the tmp folder';
            }
        }
        else
        {
            $errorMessages[] = 'You don't have sufficient access to the tmp folder; chmod u+rwx';
        }
    }
    /*
     * member of group
     */
    else if (posix_getegid() == getmygid())
    {
        if (fileperms("tmp") & 0070) == 0070)
        {
            $pass = true;
            if (filepermis("tmp") & 0007))
            {
                $warningMessages[] = 'You may want to restrict "other" access to the tmp folder';
            }
        }
        else
        {
            $errorMessages[] = 'You don't have sufficient access to the tmp folder; chmod g+rwx';
        }
    }
    /*
     * other
     */
    else if (fileperms("tmp") & 0007) == 0007)
    {
        $pass = true;
        $warningMessages[] = 'Consult your sysadmin or hosting provider. This may not be secure in some shared hosting environments.';
    {
    else
    {
        $errorMessages[] = 'You don't have sufficient access to the tmp folder; chmod a+rwx tmp'
    }