$_Get method in php (Super Global variable)

Publicado em: 06 Junho 2018
no canal de: Code with Salman

http://learnfromsalman.blogspot.com/2...
The Hypertext Transfer Protocol (HTTP) is designed to enable communications between clients and servers.
HTTP works as a request-response protocol between a client and server.
A web browser may be the client, and an application on a computer that hosts a web site may be the server.
A client (browser) submits an HTTP request to the server; then the server returns a response to the client. The response contains status information about the request and may also contain the requested content.
There are two HTTP request methods: GET and POST
1. GET – Requests data from a specified resource.
2. POST – Submits data to be processed to a specified resource.

The GET Method:

In GET method the data is sent as URL parameters that are usually strings of name and value pairs separated by ampersands (&). In general, a URL with GET data will look like this:
Advantages of Using the GET Method
 Since the data sent by the GET method are displayed in the URL, it is possible to bookmark the page with specific query string values.
 GET requests can be cached and GET requests remain in the browser history.
 GET requests can be bookmarked

Disadvantages of Using the GET Method
 The GET method is not suitable for passing sensitive information such as the username and password, because these are fully visible in the URL query string as well as potentially stored in the client browser’s memory as a visited page.
 Because the GET method assigns data to a server environment variable, the length of the URL is limited. So, there is a limitation for the total data to be sent.

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