This code is really useful for reproducing the values in the $_GET variable, and attaching that to a $_SERVER['PHP_SELF'] value when building the action value of a form tag, so that you don't lose any other values that could have been passed:
foreach ($_GET as $key => $value) {
if ($key != "C") { // ignore this particular $_GET value
$querystring .= $key."=".$value;
}
}
$_GET
$HTTP_GET_VARS [deprecated]
(No version information available, might be only in CVS)
$HTTP_GET_VARS [deprecated] — HTTP GET variables
Descrizione
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)
Log delle modifiche
| Versione | Descrizione |
|---|---|
| 4.1.0 | Introduced $_GET that deprecated $HTTP_GET_VARS. |
Esempi
Example #1 $_GET example
<?php
echo 'Hello ' . htmlspecialchars($_GET["name"]) . '!';
?>
Assuming the user entered http://example.com/?name=Hannes
Il precedente esempio visualizzerĂ qualcosa simile a:
Hello Hannes!
Note
Nota: 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.
$_GET
19-Sep-2008 02:38
17-Jun-2008 05:57
Use this code if you want to retrieve your queries no matter what method is used. Hope it helps.
<?php
// By: RJ Regalado
// http://rjfiles.uni.cc/~php_examples/?id=1
$name = trim ((!empty($_POST['name'])) ? $_POST['name'] : $_GET['name'] );
if ( strlen ($name) < 1)
{
echo "Please enter your name";
} else {
printf ("Hello <b>%s</b><br>", $name);
printf ("Bonjour <b>%s</b><br>", $name);
printf ("Hallo <b>%s</b><br>", $name);
printf ("Ciao <b>%s</b><br>", $name);
printf ("Hola <b>%s</b><br>", $name);
}
?><hr>
<form method="POST">
Name: <input type="text" name="name">
<input type="submit" value="POST">
</form><hr>
<form method="GET">
Name: <input type="text" name="name">
<input type="submit" value="GET">
</form>
15-May-2008 02:38
Note that named anchors are not part of the query string and are never submitted by the browser to the server.
Eg.
http://www.xyz-abc.kz/index.php?title=apocalypse.php#doom
echo $_GET['title'];
// returns "apocalypse.php" and NOT "apocalypse.php#doom"
you would be better off treating the named anchor as another query string variable like so:
http://www.xyz-abc.kz/index.php?title=apocalypse.php&na=doom
...and then retrieve it using something like this:
$url = $_GET['title']."#".$_GET['na'];
Hope this helps someone...
14-May-2008 04:00
Note:
If nothing is set in the address bar, the value of $_GET['n'] will be NULL, not ""(empty string) or false.
