What are the differences between "GET" and "POST"?

POST & GET are HTTP request methods to establish communications between clients and servers.

GET:

• GET method exposes parameters being used in the address bar. This can be useful to bookmark the page.
• The request gets cached by the browser which can be a potential threat while dealing with sensitive information like passwords.
• GET method is not suitable for very large variable values (max URL length is 2048 chars).
• It supports ASCII only.
• GET requests should only be used to retrieve data.

POST:

• POST method encapsulates information passed to the server.
• The variables can be of almost any length (no limits on the amount of information to send).
• It is impossible to bookmark the page.
• It supports ASCII & Binary data as well.
• POST requests should be used only to send data.