Laravel Carbon，用工作日检索今天的日期？
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Laravel Carbon, retrieve today's date with weekday?
提问by Przemek Wojtas
I am using carbon to compare 2 dates with today's date, however I also have another field in a database called weekday which contains values like:
我正在使用 carbon 将 2 个日期与今天的日期进行比较，但是我在一个名为 weekday 的数据库中还有另一个字段，其中包含如下值：
'MO' 'TU' 'WE'
'MO' 'TU' '我们'
So I don't only want to search and output by dates but also search by a weekday so:
所以我不仅要按日期搜索和输出，还要按工作日搜索，所以：
public function show($id)
{
$today = Carbon::now();
$weekday = //whatever carbon or something else has to retrieve today's day
$event = Event::with('businesses')
->where('startdate', '<', $today->format('Y-m-d'))
->where('endate', '>', $today->format('Y-m-d'))
//or where ('weekday') = $weekday?
->get();
return view('events.showEvent', compact('event'));
}
回答by thefallen
I'm not sure that Carbon has such formatting, but what you could do is get the wekkday from a map of days and the current week day constant:
我不确定 Carbon 是否具有这样的格式，但是您可以做的是从天和当前工作日常量的地图中获取 wekkday：
$weekMap = [
0 => 'SU',
1 => 'MO',
2 => 'TU',
3 => 'WE',
4 => 'TH',
5 => 'FR',
6 => 'SA',
];
$dayOfTheWeek = Carbon::now()->dayOfWeek;
$weekday = $weekMap[$dayOfTheWeek];
回答by leonardost
If you're in an English-speaking locale, you can get that short weekday format by doing some processing on Carbon's lformat, which returns weekday names:
如果您在讲英语的语言环境中，您可以通过对 Carbon 的l格式进行一些处理来获得简短的工作日格式，该格式返回工作日名称：
strtoupper(substr($today->format('l'), 0, 2)); // Returns 'MO', 'TU', etc
It can be even shorter if you have access to Carbon 2 (available on 2018-08-31):
如果您可以访问 Carbon 2（可在 2018-08-31 上获得），它甚至可以更短：
strtoupper($today->isoFormat('dd'));
