I use XAMPP to host an Apache web server and a MySQL database. Most of the data processing is done on the user's mobile phone. After a certain activity, information of the user is sent to the web server. The PHP script checks if the data is already in the database, if it is, the data is sent to the Firebase Cloud Messaging Server, which in turn sends the data to the user.
I have read Informations about the different system architectures but could not find one that fits my case.
My question is, which system architecture am I using?