function onurl( $urllist = array(), $url = '' ) {

    $urllist = array_map( 'trim', $urllist );

    if(!empty($urllist)) {
        foreach( $urllist as $ul ) {
            if(preg_match( '#' . $ul . '#i', $url )) {
                return true;
            }
        }
        // if we are here then there hasn't been a match
        return false;
    } else {
        return true;
    }

}