Скачать или смотреть GET AND POST SERVER

GET is used to request data from a specified resource.
GET is one of the most common HTTP methods.
POST is used to send data to a server to create/update a resource.
POST is one of the most common HTTP methods.
PUT is used to send data to a server to create/update a resource.

HTTP POST requests supply additional data from the client (browser) to the server in the message body. ... When the method is GET, all form data is encoded into the URL, appended to the action URL as query string parameters. With POST, form data appears within the message body of the HTTP request

Using GET Instead of POST. As with submitting any form data, you have the option of submitting your data in the form of GET requests, and you will save a few lines of code if you do so. However, there is a downside: some browsers may cache GET requests, whereas POST requests will never be cached.