如何在PHP/laravel中查询2次之间的时隙

我需要这方面的帮助，我希望用户在选择日期并申请表单时创建约会，但如果用户在页面上花费大量时间，并且其他人在他之前预订给定日期，他需要看到错误并返回选择日期

这是我的问题

 $result = Appointment::where('user_id', $post['user_id'])
 ->where('appointment_datetime', $post['bookingdate'] )
 ->whereBetween('appointment_time_start', [$begintime, $endtime])
 ->WhereBetween('appointment_time_end', [$begintime, $endtime])->get();


if ($result->isEmpty()) { /// Insert to database ///}

else { /// return back()->with('msg', 1); /// }

看来如果我想预约从12:00到13:00
我在数据库中有一个约会，从11:00到13:00，查询没有检测到它

另外，如果我有12:00到14:00，查询不会检测到它

---

谁能告诉我我的问题出在哪里，非常感谢

我的想法是，您可以在应用程序级别重复相关日期的预约时间

首先，我更喜欢使用碳包装。如果没有，可以安装

$appointments = Appointment::where('user_id', $post['user_id'])
                           ->where('appointment_datetime', $post['bookingdate'])
                            ->get();

$foundFlag = false;
if ($appointments->count() > 0) {
    $beginDate = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $begintime); // You can be add at the end of varible ":00" if not exists
    $endDate = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $endtime); //You can be add at the end of varible ":00" if not exists
    foreach($appointments as $appointment){
        $beginDateForCurrenAppointment = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $appointment->appointment_time_start); // You can be add at the end of varible ":00" if not exists

        $endDateForCurrenAppointment = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $appointment->appointment_time_end); // You can be add at the end of varible ":00" if not exists


        if ($beginDateForCurrenAppointment->between($beginDate, $endDate, true) || $endDateForCurrenAppointment->between($beginDate, $endDate, true) || $beginDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true) || $endDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)) {
            $foundFlag = true;
            break;
        }
    }
}

if (! $foundFlag) {
    // Insert Database
} else {
    /// return back()->with('msg', 1); ///
}

if语句中的每个逻辑都是指：

如果请求约会在一个约会开始时间之间存在：

$beginDateForCurrenAppointment->between($beginDate, $endDate, true)

$beginDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)

如果请求约会存在于约会结束时间之间：

$endDateForCurrenAppointment->between($beginDate, $endDate, true)

$endDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)

如果在请求的约会开始时间之间存在约会：

$beginDateForCurrenAppointment->between($beginDate, $endDate, true)

$beginDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)

如果在请求的约会结束时间之间存在约会：

$endDateForCurrenAppointment->between($beginDate, $endDate, true)

$endDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)

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预约时间有什么限制吗？或者可以？很好，梅苏蒂你帮我弄明白了！我想现在可以了再次谢谢你