![]() ![]() Thus, data is accessed from any script in the program. GET is the default super global method that collects or retrieves data from the server. The output of the code above is as shown in the animation below. # Process the form data if the input fields are not empty In this case, we will have the PHP code in the same script as the HTML form. It can be in the same script where the HTML form is, or it can be on a different script. The code should be put in the script, which is the form target. The PHP code below can be used to process input from an HTML form with the POST method. The POST method is appropriate for a login form. This is because data is submitted via the body of the HTTP request. POST does not have a limitation on the amount of data sent from the form. The POST method is also important because data cannot be decoded by looking into web server logs. The POST method is preferred because data sent through it is not visible in the URL. POST method has a global scope, and data is accessed from any script. The data entered is encoded, and the content is hidden. POST is a superglobal method, which collects form data and submits it to the HTTP server. The data submitted via the POST method is stored in the HTTP request body and cannot be seen on the URL. ![]() The GET method collects data from the server and sends it in the URL. ![]() The method specifies how data is processed. Data can be submitted on the same page as the form or on a different page. The action identifies the page where the form input is submitted. The output for the above code is as shown in the screenshot below. To have a complete source code, use this HTML code and change the method to either POST or GET where necessary. Here is an example of a form that submits data to a file named index.php. The HTML form sends data to your PHP script using either POST or GET methods. It also gives instructions about how and where to submit the form. This means that a user with no technical skills should be able to use it.įorms are defined by the tags. It, therefore, becomes easy for the user to interact with the webpage. HTML forms can contain special elements such as buttons, radio buttons, and checkboxes. In contrast, calling a POST method affects the database because you create multiple objects. This means calling a PUT method multiple times will not affect the database because data is already updated. Some developers are unable to differentiate between the POST and PUT methods. PUT method sends data to the server to create or update a resource. The POST method sends data from the HTML form to the server to create a resource. The GET method fetches data from the server. Data is processed based on the selected method. ![]() Though HTTP supports several methods, we will focus on GET, POST, and PUT. An HTTP request is sent by a client to the server which then returns a response. Hypertext Transfer Protocol (HTTP) enables communication between the client (browser) and the server. This pattern is commonly known by the acronym CRUD operations. There are four database operations involved, these being create, read, update, and delete. Processing user input involves validating inputs, database operations, and providing feedback to the user. Most of the time, the form data is sent to the server for processing. The form is presented to the user who inserts data and submits the form using a submit button. Using forms to collect data in a web application is a simple task. The user’s data is stored in the database and retrieved anytime. Overview of formsĪ form is a document with blank fields for a user to insert or update data. Learn about Hypertext Transfer Protocol (HTTP) request methods (GET, POST, and PUT).īefore we begin you should have prior knowledge of HTML, PHP, and MySQL.Through this article, you will learn how to: PHP connects the web application with the database server. Creating a form on a web application is achieved using HTML. Forms are the fundamental interface between the user and the server. They range from contact forms, login forms, and also registration forms. We mainly use HTML forms when collecting user input in web-based applications. ![]()
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