$_GET

$HTTP_GET_VARS [deprecated]

(PHP 4 >= 4.1.0, PHP 5)

$_GET -- $HTTP_GET_VARS [deprecated] — HTTP GET variables

Beskrivelse

An associative array of variables passed to the current script via the URL parameters.

$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	Beskrivelser
4.1.0	Introduced `$_GET` that deprecated `$HTTP_GET_VARS`.

Eksempler

Eksempel #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!

Noter

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.

Note:
The GET variables are passed through urldecode().

Se også

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User Contributed Notes 1 note

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-1

An Anonymous User ¶

2 years ago


<?php
// It is important to sanitize
// input! Otherwise, a bad actor
// could enter '<script src="evilscript.js"></script>'
// in a URL parameter. Assuming you echo it, this
// would inject scripts in an XSS attack.
//
// The solution:
$NAME = $_GET['NAME'];
// Bad:
echo $NAME;
// that one is vulnerable to XSS
// Good:
echo htmlspecialchars($NAME);
// Sanitizes input thoroughly.
?>

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