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Last updated: Sun, 02 May 2004

XXXVII. Funzioni HTTP

Queste funzioni permettono di modificare l'output inviato verso un browser attraverso manipolazioni a livello di protocollo HTTP.

Sommario
header -- Spedisce un header HTTP
headers_list -- Returns a list of response headers sent (or ready to send)
headers_sent -- Restituisce TRUE se gli header sono stati trasmessi.
setcookie -- Spedisce un cookie
setrawcookie -- Send a cookie without urlencoding the cookie value


add a note add a note User Contributed Notes
Funzioni HTTP
28-Apr-2004 01:05
in reference to toashwinisidhu's and breaker's note, a more effective way would be to use meta-tag redirect, for example.

<?php
$url
= "http://somesite.com/index.php"; // target of the redirect
$delay = "3"; // 3 second delay

echo '<meta http-equiv="refresh" content="'.$delay.';url='.$url.'">';

?>

The meta goes in the head of the HTML.
This method does not require javascript and is supported by most browsers and is rarely, if ever, filterd out.
toashwinisidhu at yahoo dot com
21-Apr-2004 09:55
The method given below may not sometimes work.
The following method has always worked with me:
just put the following 3 lines in your PHP code

?>
<body onload=setTimeout("location.href='$url'",$sec)>
<?PHP
-------?>

$sec is the time in second after which the browser would automatically go to the url. Set it to 0 if you do not want to give any time.
You can use this function on the events of various html/form objects (eg.-onclick for button).eg.
<input type=button value="Go to Php.net" onclick=setTimeout("location.href='php.net'",0)>
Use this to one step back
<input type="button" value="Back" onclick=history.go(-1)>
breaker at coder dot hu
15-Mar-2003 02:15
[Editor's Note:] This method uses JavaScript which requires the visitor's browser to have javascript enabled [/Note]

Another way, to redirect to an url without any notification or message:
Print("window.location='$urlvar';");
nf at wh3rd dot net
06-Sep-2002 05:57
If you're wanting to perform an HTTP POST, I've written a small but useful function to do so:

http://nf.wh3rd.net/projects/http.inc/
krisj at blueridge dot net
23-Jan-2001 10:41
When using the $SERVER_NAME or other predefined variables within a function BE SURE to use $GLOBALS["SERVER_NAME"] in its place =)
jeffp-php at outofservice dot com
05-Jan-2001 02:37
$HTTP_RAW_POST_DATA --

You'll usually access variables from forms sent via POST method by just accessing the associated PHP global variable.

However, if your POST data is not URI encoded (i.e., custom application that's not form-based) PHP won't parse the data into nice variables for you.  You will need to use $HTTP_RAW_POST_DATA to access the raw data directly. (This should return a copy of the data given to the PHP process on STDIN; note that you wan't be able to open STDIN and read it yourself because PHP already did so itself.)
dhpainter at msn dot com
26-Apr-2000 04:35
To create a link to the previous page you can use the
 getenv("HTTP_REFERER")
command and  set it up as a hyperlink. You might also want to put a IF condition on it so it won't get displayed if the user has gone straight in to the page.

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 Last updated: Sun, 02 May 2004
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