Laravel 7: Find days and dates between two dates with condition - php

Question

When the user submits a leave application, needs to select the start and end date. But before saving it needs to check is there any holiday or weekly holiday in between two dates. If a holiday or weekly holiday matches then the total number of holidays will be deducted from the total days.
Weekly Holiday:
id
day
working_status
1
Fri
1
Holiday Table: (Model Name: Holiday)
id
date
publication_status
1
2022-05-26
1
Leave Table:
id
start_date
end_date
total_days
1
2022-05-25
2022-05-28
2
Controller:
$leave = new User;
$leave->start_date = $request->start_date;
$leave->end_date = $request->end_date;
//get and convert day name for weekly holiday compare like Fri, Sat etc.
$start_day = date("D", strtotime($request->start_date));
$end_day = date("D", strtotime($request->end_date));
// get and convert date for monthly holiday compare
$start = strtotime($request->start_date);
$end = strtotime($request->end_date);
$diff = $end - $start;
$diff_in_days = floor($diff/(60*60*24)) + 1;
// Suppose Fri is holiday now we have to count how many Fri day in between start and end date.
here need help
$weekly_holidays = WorkingDay::where('working_status', 1)
->get(['day'])->count();
// we have to count how many Monthly holiday in between start and end date. here need help
$monthly_holidays= Holiday::where('publication_status', 1)->get(['date'])->count();
$total_days = $diff_in_days - ($weekly_holidays + $monthly_holidays);
if($request->halfday == 1){
$leave->total_days = 0.5;
}
else{
$leave->total_days = $total_days;
}
Example:
WorkingDay = day = Fri
Holiday = date = 2022-05-26
start_date = 2022-05-25
end_date = 2022-05-28
total_days = 2
// from 25 to 28, the total days are 4, but 26 is a holiday, and 27 is Friday. Holidays can be multiple dates. If there is multiple holidays between the start and end date, it will calculate according to this.

Answer 1

It's actually easier. You don't need to complicate it. Carbon comes to the rescue here.
$startDate = Carbon::parse('start date here');
$endDate = Carbon::parse('date string here');
$weekdays = $startDate->diffInWeekdays($endDate);
This will give you the day difference in weekdays excluding any weekends.
Now whichever database you use, you would have a function to get the day of the week in number where 0 stands for Sunday and 6 for Saturday.
For Postgres, I will give you an example
weekdays_holiday_count = select count(*) from holidays where date_part('dow', date) not in (0, 6) # 0 for Sunday and 6 for Saturday
This query is counting holidays which came on weekdays. I give you the raw query here. however, the point here is to under the magic of the function.
Now you can do the math easily
$weekdays - $weekdays_holiday_count
Make sure to import Carbon\Carbon at the top.