think php5 multi-table query paging code method to get the total number

I encounter a lot of paging situations in tp5. This article will explain the relevant knowledge.

Controller

$data = input('get.'); $info = []; //搜索条件 if(!empty($data['title'])){ $data['title'] = trim($data['title']); $info['topic_title'] = ['like','%'.$data['title'].'%']; } $list = BeModel::getList($info); $num = $list->total();//获取总数 return $this->fetch('',[ 'list' => $list, 'title' => empty($data['title']) ? '' :$data['title'], 'num' => $num ]);

Inside the model

$search = []; $search['b.status'] = ['neq',-1]; if(!empty($data['topic_title']) ){ $search['b.topic_title'] = $data['topic_title']; } $res = self::alias('b')->join('subject s','s.id=b.subject_id','left') ->join('law l','l.id=b.law_id','left') ->field('b.*,s.subject,l.name') ->where($search) ->order('id asc') ->paginate(4,false,[ 'query' => request()->param(), ]); return $res;

This article explains the paging problem of tp5. For more related content, please pay attention to the php Chinese website.

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