L. Funciones HTTP

IntroducciÃ³n

Estas funciones le permiten manipular la salida que se envÃa de vuelta al navegador remoto al nivel del protocolo HTTP.

Requisitos

No se necesitan bibliotecas externas para construir esta extensiÃ³n

InstalaciÃ³n

No se necesita ninguna instalaciÃ³n para usar estas funciones, son parte del nÃºcleo de PHP.

ConfiguraciÃ³n en tiempo de ejecuciÃ³n

Esta extensiÃ³n no tiene directivas de configuraciÃ³n en php.ini.

Tipos de recursos

Esta extensiÃ³n no tiene ningÃºn tipo de recurso definido.

Constantes predefinidas

Esta extensiÃ³n no tiene ninguna constante definida.

Tabla de contenidos
header -- Enviar una cabecera HTTP pura
headers_list -- Devuelve una lista de cabeceras de respuesta enviadas (o listas para ser enviadas)
headers_sent -- Chequea si se han enviado cabeceras, y dÃ³nde
setcookie -- Enviar una cookie
setrawcookie -- Enviar una cookie sin codificar el valor de la misma

add a note User Contributed Notes
Funciones HTTP

alan at akbkhome dot com
10-Aug-2006 09:19


Note: the Classes are Only available in PHP5, the functions however work in both PHP4 and PHP5.

henke dot andersson at comhem dot se
14-Jan-2006 01:01


If you want to make outgoing http connections with php, concider the curl extension.

woei at xs4all dot nl
30-Nov-2005 07:57


Actually, if you want to redirect a user why let HTML or JavaScript do it? Simply do this:



header("Location: http://www.example.com/");

WeeJames
07-Jul-2004 11:39


Regarding what the guy before said.  We've experienced problems where certain firewalls have encrypted the HTTP_REFERER meaning that it doesnt always contain the place you've come from.



Better to track where the user has come from either in a form post or in the url.

27-Apr-2004 07:05


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/http://indices.com.es/index.html"; // 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 03:55


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='http://indices.com.es/php.html'",0)>

Use this to one step back

<input type="button" value="Back" onclick=history.go(-1)>

jeffp-php at outofservice dot com
04-Jan-2001 08:37


$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.)

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MANUAL DE PHP

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