I need a help with a wp datepicker. The thing what i want is – customer in checkout page can choose the pickup and delivery date. After choosing the date, then in cart summary shows the calculation – example, I choose from 24.07 – 26.07, then in the calculation shows 2days and multiply the price of the product x2. I’ll add a screenshot what I need.
Functions.php code – https://pastebin.com/sy4Vh2MP
Review-order.php code – https://pastebin.com/qc3QbpGW
I have also tried like this – functions.php – https://pastebin.com/3KavWcGe
The calendar appears, but no other price appears at Total if I select, for example, 3 days. For example, the product costs 1 EUR, if I want to rent it for three days, then I would have to show up at Total like this – 3 EUR (1 EUR x 3 days). I tried to turn on the DEBUG mode, but after selecting the dates, the data from the POST is not obtained at all.