如何从laravel 5.1中数据库表的created_at属性中选择年和月?

2021-12-18 00:00:00 sql php laravel eloquent laravel-5.1

我的问题是我只想从 created_at 属性中获取数据库表中的数据，仅按年和月计算.我试过的代码是:

My problem is that I want to get data form the database table from the created_at attributes as per year and month only. The code I have tried is:

$post= Mjblog::select(DB::raw('YEAR(created_at) year, MONTH(created_at) month'));
$posts_by_y_m = $post->where('created_at',$post)->get();

推荐答案

查询构建器中有可用的日期助手:

There are date helpers available in the query builder:

$post = Mjblog::whereYear('created_at', '=', $year)
              ->whereMonth('created_at', '=', $month)
              ->get();

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