After the information in a form is entered by a user, the user clicks the submit button to send the information contained in the form to the server for processing.
The whole process of transmission of the information from browser to the server is performed by the enctype, action, and method attributes of the FORM tag.
The enctype attribute encodes the information from the form before transmitting it from the browser to the server. The action attribute specifies the URL of the program that handles the information contained in the form and the method attribute specifies how the information is transmitted from the browser to the server.
You will learn all about submitting the form in detail in following separate tutorials: