What Is The Difference Between The HTTP Get And Post Methods in PHP

In this exercise you will figure out how to send data to the server utilizing HTTP Request, Get And Post Methods and retrieve them utilizing PHP. A web program connect with the server normally utilizing one of the two HTTP (Hypertext Transfer Protocol) methods – GET and POST. Both strategies pass the data diversely and have different preferences and weaknesses

There are two ways the browser customer can send data to the web server.(1. The GET Method  2. The POST Method)

Difference Between HTTP GET and POST Methods in php

Get And Post Methods in PHP


The GET Method

The GET method sends the encoded user information appended to the page request. Which contains both page link and encoded information separated by the ? Character.

Client Side: Below code is an  HTML form with method=”Get” for user to fill information.

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:

The bold parts in the URL are the GET parameters and the italic parts are the value of those parameters. More than one parameter=value can be embedded in the URL by concatenating with ampersands (&). One can only send simple text data via GET method.

Advantages and Disadvantages of Using the GET Method

  • The GET method produces a long string that appears in your server logs, in the browser’s Location: box.
  • The GET method is restricted to send upto 1024 characters only.
  • Never use GET method if you have password or other sensitive information to be sent to the server.
  • GET can’t be used to send binary data, like images or word documents, to the server.
  • The data sent by GET method can be accessed using QUERY_STRING environment variable.
  • The PHP provides $_GET associative array to access all the sent information using GET method.

Example


POST Method

In POST method the data is transfers information via HTTP headers. Data sent through POST method will not visible in the URL.

Client Side: Below code is an  HTML form with method=”post” for user to fill information.

Advantages and Disadvantages of Using the POST Method

  • The POST method does not have any restriction on data size to be sent.
  • The POST method can be used to send ASCII as well as binary data.
  • The data sent by POST method goes through HTTP header so security depends on HTTP protocol. By using Secure HTTP you can make sure that your information is secure.
  • The PHP provides $_POST associative array to access all the sent information using POST method.
  • It is more secure than GET because user-entered information is never visible in the URL query string or in the server logs.
  • Since the data sent by the POST method is not visible in the URL, so it is not possible to bookmark the page with specific query.

Like $_GET, PHP provide another superglobal variable $_POST to access all the information sent via post method or submitted through an HTML form using the method=”post”.

 


The $_REQUEST Variable

PHP provides another superglobal variable $_REQUEST that contains the values of both the $_GET and $_POST variables as well as the values of the $_COOKIE superglobal variable.

For the above reasons, POST method is broadly used to send the data to the server. Trust this instructional exercise helped you a lot, keep reading our various posts for more coding Tricks and Tips. If you like this article do me favor by sharing it with your friends.

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