Service class invokes DAO function to read data from the database table. It calls the service to prepare a response. These are, the REST controller, service class, and the DAO. Our REST API fetches the list of mobile names from the database and sends the response in JSON. We have a database table containing the list of mobile phone model names. If you want to see how to handle JSON data with PHP with detailed notes and examples, then the linked article will be a perfect tutorial on this. After receiving the response, the Android application displays the row of items in a ListView by parsing the JSON data. In the server side, the API service reads data from the database and sends the response in JSON format. In this example, we are calling the PHP REST API from an android application. I strongly recommend you to go through it before continuing this tutorial. In a previous tutorial, we have seen then basics about PHP RESTful services. Also, I am providing an example Android project code for invoking this RESTful service. In this tutorial, we are creating a PHP RESTful service to read data from a (MySQL) database table. When the scenario requires data to be stored in a centralized manner, then this architecture should be used.Otherwise, the local database in the mobile can be used for the storage and retrieval of information.
PHP REST API backed up with a MySQL database is a very common schematic of an Enterprise mobile application.
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