function detectRequester ( $type )
        {
#-k     device
#-      What's the type of device calling me?
#-d     9/20/14 - added

        $user_agent = strtolower ( $_SERVER['HTTP_USER_AGENT'] );
        if ( $type == 'bot' )
                {       # matches popular bots (watchmouse|pingdom\.com are "uptime services")
                if ( preg_match ( "/googlebot|adsbot|yahooseeker|yahoobot|msnbot|".
                                "watchmouse|pingdom\.com|feedfetcher-google/", $user_agent ) )
                        {
                        return true;
                        }
                }
        else if ( $type == 'browser' )
                {       # matches core browser types
                if ( preg_match ( "/mozilla\/|opera\//", $user_agent ) )
                        {
                        return true;
                        }
                }
        else if ( $type == 'mobile' )
        {       # matches popular mobile devices that have small screens and/or touch
                # inputs. Mobile devices have regional trends; some of these will have
                # varying popularity in Europe, Asia, and America detailed demographics
                # are unknown, and South America, the Pacific Islands, and Africa trends
                # might not be represented, here
                if ( preg_match ( "/phone|iphone|itouch|ipod|symbian|android|".
                                "htc_|htc-|palmos|blackberry|opera mini|iemobile|".
                                "windows ce|nokia|fennec|hiptop|kindle|mot |mot-|webos\/|"."
                                samsung|sonyericsson|^sie-|nintendo/", $user_agent ) )
                {       # these are the most common
                        return true;
                }
                else if ( preg_match ( "/mobile|pda;|avantgo|eudoraweb|minimo|netfront|".
                                        "brew|teleca|lg;|lge |wap;| wap /", $user_agent ) )
                {       # these are less common, and might not be worth checking
                        return true;
                }
        }
        return false;
}

?>