帝国CMS无相关信息时调用其它信息的方法

function dp_GetKeyboard($num=100){
        global $empire,$public_r,$class_r,$fun_r,$dbtbpre,$class_r,$navinfor;
        $keyid=$navinfor['keyid'];
        $classid=$navinfor['classid'];
        $id=$navinfor['id'];
        $link_num=$class_r[$classid]['link_num'];
        if(!$link_num){
                return $fun_r['NotLinkNews'];
        }
        $tr=$empire->fetch1("select otherlinktemp,otherlinktempsub,otherlinktempdate from ".GetTemptb("enewspubtemp")." limit 1");
        $temp_r=explode("[!--empirenews.listtemp--]",$tr[otherlinktemp]);
        if($keyid){
                $add="id in (".$keyid.")";
        }else{
                $e=$id+$num;
                $s=$id-$num;
                $add=" classid=".$classid." and id>".$s." and id<".$e;
        }
        $key_sql=$empire->query("select id,newstime,title,isurl,titleurl,classid,titlepic from {$dbtbpre}ecms_".$class_r[$classid][tbname]." where ".$add." order by newstime desc limit $link_num");
        while($link_r=$empire->fetch($key_sql)){
                if($link_r['id']==$id){
                        continue;
                }
                $keyboardtext.=RepOtherTemp($temp_r[1],$link_r,$tr);
        }
        if(empty($keyboardtext)){
                return $fun_r['NotLinkNews'];
        }
        $keyboardtext=$temp_r[0].$keyboardtext.$temp_r[2];
        return $keyboardtext;
}