The implementation of PHP multi-table query plus pagination look, Daniel.

public function my_join_activity(){        header('Content-type:text/html;charset=utf-8');        $Model=M();        $unionid=session('unionid');        if(!$unionid){            $inde=A('Index');            $inde->login();        }        //使用原生sql进行多表查询 注意where条件的and语句        $list=$Model->query("select * from activity,apply where apply.ac_id=activity.ac_id and apply.unionid='{$unionid}' order by ap_id desc");        $this->assign('list',$list);        $this->display();    }

Using the TP framework SQL how to page, such as a page display 5 data How to do it

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public function my_join_activity(){        header('Content-type:text/html;charset=utf-8');        $Model=M();        $unionid=session('unionid');        if(!$unionid){            $inde=A('Index');            $inde->login();        }        //使用原生sql进行多表查询 注意where条件的and语句        $list=$Model->query("select * from activity,apply where apply.ac_id=activity.ac_id and apply.unionid='{$unionid}' order by ap_id desc");        $this->assign('list',$list);        $this->display();    }

Using the TP framework SQL how to page, such as a page display 5 data How to do it

Implemented with count and limit

$User = M('User'); // 实例化User对象$count      = $User->where('status=1')->count();// 查询满足要求的总记录数$Page       = new \Think\Page($count,25);// 实例化分页类 传入总记录数和每页显示的记录数(25)$show       = $Page->show();// 分页显示输出// 进行分页数据查询 注意limit方法的参数要使用Page类的属性$list = $User->where('status=1')->order('create_time')->limit($Page->firstRow.','.$Page->listRows)->select();$this->assign('list',$list);// 赋值数据集$this->assign('page',$show);// 赋值分页输出$this->display(); // 输出模板

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