thinkphp5 모델 방법을 사용하는 방법

        //（1）筛选条件使用闭包函数
        $res = User::all(function($query){
            $query->where('id','>',0)->field('id,name,email');
        });
        foreach($res as $val){
            dump($val->toArray());
        }
        //（2）筛选条件使用where()方法
        $res = User::where('id','>',0)->field('id,name,email')->all();
        //致命错误: Call to undefined method app\index\controller\User::all()

        //（1）筛选条件使用where()
        $res = User::where('id','>',0)->field('id,name,email')->select();
        foreach($res as $val){
            dump($val->toArray());
        }
        //（2）筛选条件使用闭包函数
        $res = User::select(function($query){
            $query->where('id','>',0)->field('id,name,email');
        });
        foreach($res as $val){
            dump($val->toArray());
        }

      //(1)筛选条件使用闭包函数
        $res = User::find(function($query){
            $query->where('name','=','zhang san');
        });
        dump($res->toArray());
        //(2)筛选条件使用where
        $res = User::where('name','=','zhang san')->find();
        dump($res->toArray());

        //（1）筛选条件使用闭包函数
        $res = User::get(function($query){
            $query->where('name','=','zhang san');
        });
        dump($res->toArray());
        //（2）错误方式：筛选条件使用where()方法，
        $res = User::where('name','=','zhang san')->get();
        dump($res->toArray());
        //报错：method not exist:think\db\Query->get
        //get()方式只能使用闭包形式。

$email = User::where('name','=','zhang san')->value('email');
dump($email);