诀窍在于改变它:

Reservation::whereBetween('reservation_from', [$from, $to])->get();

to

Reservation::whereBetween('reservation_from', ["$from", "$to"])->get();

因为mysql中的日期必须是字符串类型

我已经创建了模型作用域

要了解更多关于范围的信息，请查看以下链接:

laravel.com/docs/eloquent # query-scopes medium.com/@janaksan / using-scope-with-laravel

代码:

   /**
     * Scope a query to only include the last n days records
     *
     * @param  \Illuminate\Database\Eloquent\Builder $query
     * @return \Illuminate\Database\Eloquent\Builder
     */
    public function scopeWhereDateBetween($query,$fieldName,$fromDate,$todate)
    {
        return $query->whereDate($fieldName,'>=',$fromDate)->whereDate($fieldName,'<=',$todate);
    }

在控制器中，将Carbon Library添加到顶部

use Carbon\Carbon;

从现在开始获取最近十天的记录

 $lastTenDaysRecord = ModelName::whereDateBetween('created_at',(new Carbon)->subDays(10)->startOfDay()->toDateString(),(new Carbon)->now()->endOfDay()->toDateString() )->get();

从现在开始获取过去30天的记录

 $lastThirtyDaysRecord = ModelName::whereDateBetween('created_at',(new Carbon)->subDays(30)->startOfDay()->toDateString(),(new Carbon)->now()->endOfDay()->toDateString() )->get();

whereBetween方法验证列的值是否在between之间 两个值。

$from = date('2018-01-01');
$to = date('2018-05-02');

Reservation::whereBetween('reservation_from', [$from, $to])->get();

在某些情况下，需要动态添加日期范围。根据@Anovative的评论，你可以这样做:

Reservation::all()->filter(function($item) {
  if (Carbon::now()->between($item->from, $item->to)) {
    return $item;
  }
});

如果你想添加更多的条件，那么你可以使用orWhereBetween。如果你想要排除一个日期间隔，那么你可以使用whereNotBetween。

Reservation::whereBetween('reservation_from', [$from1, $to1])
  ->orWhereBetween('reservation_to', [$from2, $to2])
  ->whereNotBetween('reservation_to', [$from3, $to3])
  ->get();

其他有用的where子句:whereNotIn, whereenull, whereNotNull, whereDate, whereMonth, whereDay, whereYear, whereTime, whereColumn, whereExists, whereRaw。

Laravel关于Where子句的文档。

如果你想检查当前日期是否存在于db中的两个日期之间: =>在这里，如果员工的申请从和到日期在今天存在，则查询将获得申请列表。

$list=  (new LeaveApplication())
            ->whereDate('from','<=', $today)
            ->whereDate('to','>=', $today)
            ->get();

@masoud，在Laravel，你必须从表单请求字段值。所以,

    Reservation::whereBetween('reservation_from',[$request->from,$request->to])->get();

而在livewire中，略有变化

    Reservation::whereBetween('reservation_from',[$this->from,$this->to])->get();

让我用准确的时间戳添加正确的语法

之前

$from = $request->from;
$to = $request->to;
Reservation::whereBetween('reservation_from', [$from, $to])->get();

后

$from = date('Y-m-d', strtotime($request->from));
$to = date('Y-m-d', strtotime($request->to));
Reservation::whereBetween('reservation_from', [$from, $to])->get();

注意:如果您以字符串形式存储日期，那么请确保在from和to中传递准确的格式。它将与DB匹配。