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HTTP GET variables

$_SERVER

$_POST

Predefined variables

PHP Manual

$_GET

$HTTP_GET_VARS [deprecated]

(No version information available, might be only in CVS)

$HTTP_GET_VARS [deprecated] — HTTP GET variables

Description

An associative array of variables passed to the current script via the HTTP GET method.

$HTTP_GET_VARS contains the same initial information, but is not a superglobal. (Note that $HTTP_GET_VARS and $_GET are different variables and that PHP handles them as such)

ChangeLog

Version	Description
4.1.0	Introduced `$_GET` that deprecated `$HTTP_GET_VARS`.

Examples

Example #1 $_GET example

  <?php 
 echo  'Hello '  .  htmlspecialchars ( $_GET [ "name" ]) .  '!' ; 
 ?>

Assuming the user entered http://example.com/?name=Hannes

The above example will output something similar to:

Hello Hannes!

Notes

Note: This is a 'superglobal', or automatic global, variable. This simply means that it is available in all scopes throughout a script. There is no need to do global $variable; to access it within functions or methods.