laravel 的 分页以及条件搜索后分页

//后台的数据查询
public  function  index(Request $request)
{
    $tid = empty($request->input("tid"))?0:$request->input("tid");
    $content = empty($request->input("content"))?"":$request->input("content");
    if($tid==0)
    {
        $where=">";
    }
    else
    {
        $where ="=";
    }
    $news = DB::table("content")
        ->join("title", "title.tid", "=", "content.tid")
        ->where("content.tid",$where,$tid)
        ->where("content","like","%$content%")
        ->paginate(5);
    //新闻的分类
    $title = DB::table("title")->get();
    $news->tid=$tid;
    $news->content=$content;
    //新闻内容
    return view("news",["title"=>$title,"news"=>$news]);
｝
//前台分页数据渲染

{!! $news->appends(array("tid"=>$news->tid,"content"=>$news->content))->render() !!}