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The web is based on a very basic client/server architecture that can be summarized as follows: a client (usually a Web browser) sends a request to a server (most of the time a web server like Apache, Nginx, IIS, Tomcat, etc.), using the HTTP protocol. The server answers the request using the same protocol.

The

element defines how the data will be sent. All of its attributes are designed to let you configure the request to be sent when a user hits a submit button. The two most important attributes are action and method.

action attribute: defines where the data gets sent. Its value must be a valid URL. If this attribute isn't provided, the data will be sent to the URL of the page containing the form.

method attribute: This attribute defines how data is sent. The HTTP protocol provides several ways to perform a request; HTML form data can be transmitted via a number of different ones, the most common of which are the GET method and the POST method.

get method: used by the browser to ask the server to send back a given resource