How do I send C# variable containing user input datetime value to PHP script via HTTP request?

See more:

C#

PHP

I hope my question makes sense. I will try and explain the problem in detail.

I have a Xamarin.forms application that has C# code behind functions which take in user input date and time picker values. I want to be able to send these picker arguments to a PHP script(index.php) hosted in a Azure web app.

The PHP script has SQL Select statements in it for retrieving the records from the Azure SQL DB table. I want to only retrieve data recorded during the Day and time period chosen by the user.

What I have tried:

Is it possible to do this using client server modules/HTTP requests?

I am not sure where to start. Can one of you kindly guide me in the right direction....