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() !!}