ApÃ©ndice M. Lista de Protocolos/Envolturas Soportadas

Tabla de contenidos
Sistema de archivos
Socket
HTTP y HTTPS
FTP y FTPS
Secuencias de entrada/salida PHP
Secuencias de CompresiÃ³n
Shell Seguro 2
Secuencias de Audio
Secuencias de InteracciÃ³n de Procesos

La siguiente es una lista de los varios protocolos estilo URL que PHP tiene integrado para su uso con las funciones del sistema de archivos, tales como fopen() y copy(). Adicionalmente a estas envolturas, y a partir de PHP 4.3.0, usted puede escribir sus propias envolturas usando scripts PHP y stream_wrapper_register().

Sistema de archivos

Todas las versiones de PHP. Usada explÃcitamente mediante file:// a partir de PHP 4.3.0

/ruta/hacia/archivo.ext
ruta/relativa/hacia/archivo.ext
archivoEnDirActual.ext
C:/ruta/hacia/archivo_win.ext
C:\ruta\hacia\archivo_win.ext
\\servidor_smb\recurso_compartido\ruta\hacia\archivo_win.ext
file:///ruta/hacia/archivo.ext

file:// es la envoltura predeterminada usada por PHP, y representa el sistema de archivos local. Cuando se especifica una ruta relativa (una ruta que no comienza con /, \, \\, o una letra de unidad en windows), la ruta provista serÃ¡ aplicada contra el directorio de trabajo actual. En muchos casos Ã©ste es el directorio en el cual reside el script, a menos que haya sido modificado. Al usar la sapi CLI, Ã©ste es, por defecto, el directorio desde donde fue llamado el script.

Con algunas funciones, como fopen() y file_get_contents(), include_path puede usarse opcionalmente tambiÃ©n para las bÃºsquedas de rutas relativas.

Tabla M-1. Resumen de Envoltura

Atributo	Soporte
RestricciÃ³n por allow_url_fopen.	No
Permite Lectura	Si
Permite Escritura	Si
Permite AdiciÃ³n	Si
Permite Lectura y Escritura SimultÃ¡nea	Si
Soporte stat()	Si
Soporte unlink()	Si
Soporte rename()	Si
Soporte mkdir()	Si
Soporte rmdir()	Si

add a note User Contributed Notes
Lista de Protocolos/Envolturas Soportadas

ben dot johansen at gmail dot com
29-Aug-2006 11:02


Example of how to use the php://input to get raw post data



//read the raw data in

$roughHTTPPOST = file_get_contents("php://input"); 

//parse it into vars

parse_str($roughHTTPPOST);



if you do readfile("php://input") you will get the length of the post data

ben dot johansen at gmail dot com
29-Aug-2006 12:33


In trying to do AJAX with PHP and Javascript, I came upon an issue where the POST argument from the following javascript could not be read in via PHP 5 using the $_REQUEST or $_POST. I finally figured out how to read in the raw data using the php://input directive.

    

Javascript code:

=============

      //create request instance      

      xhttp = new XMLHttpRequest();

      // set the event handler

      xhttp.onreadystatechange = serviceReturn;

      // prep the call, http method=POST, true=asynchronous call

      var Args = 'number='+NbrValue;

      xhttp.open("POST", "http://<?php echo $_SERVER['SERVER_NAME'] ?>/webservices/ws_service.php", true);

      // send the call with args

      xhttp.send(Args);



PHP Code:

    //read the raw data in

    $roughHTTPPOST = file_get_contents("php://input"); 

    //parse it into vars

    parse_str($roughHTTPPOST);

heitorsiller at uol dot com dot br
07-Jul-2006 07:55


For reading a XML stream, this will work just fine:

<?php



$arq = file_get_contents('php://input');



?>



Then you can parse the XML like this:



<?php



$xml = xml_parser_create();



xml_parse_into_struct($xml, $arq, $vs);



xml_parser_free($xml);



$data = "";



foreach($vs as $v){



        if($v['level'] == 3 && $v['type'] == 'complete')

                $data .= "\n".$v['tag']." -> ".$v['value'];

}



echo $data;



?>



PS.: This is particularly useful for receiving mobile originated (MO) SMS messages from cellular phone companies.

opedroso at NOSPAMswoptimizer dot com
12-Apr-2006 11:07


php://input allows you to read raw POST data. It is a less memory intensive alternative to $HTTP_RAW_POST_DATA and does not need any special php.ini directives. 



Example use:



$httprawpostdata = file_get_contents("php://input");



When reading a base64 encoded stream using php://input, be aware that you do not need to decode it, it will automatically be done for you.

nyvsld at gmail dot com
27-Nov-2005 10:28


php://stdin supports fseek() and fstat() function call, 

while php://input doesn't.

drewish at katherinehouse dot com
24-Sep-2005 11:50


Be aware that contrary to the way this makes it sound, under Apache, php://output and php://stdout don't point to the same place.



<?php

$fo = fopen('php://output', 'w');

$fs = fopen('php://stdout', 'w');



fputs($fo, "You can see this with the CLI and Apache.\n");

fputs($fs, "This only shows up on the CLI...\n");



fclose($fo);

fclose($fs);

?>



Using the CLI you'll see:

  You can see this with the CLI and Apache.

  This only shows up on the CLI...



Using the Apache SAPI you'll see:

  You can see this with the CLI and Apache.

chris at free-source dot com
26-Apr-2005 12:52


If you're looking for a unix based smb wrapper there isn't one built in,  but I've had luck with http://www.zevils.com/cgi-bin/viewcvs.cgi/libsmbclient-php/ (tarball link at the end).

nargy at yahoo dot com
24-Sep-2004 03:16


When opening php://output in append mode you get an error, the way to do it:

$fp=fopen("php://output","w");

fwrite($fp,"Hello, world !<BR>\n");

fclose($fp);

aidan at php dot net
27-May-2004 03:34


The contants:



* STDIN

* STDOUT

* STDERR



Were introduced in PHP 4.3.0 and are synomous with the fopen('php://stdx') result resource.

lupti at yahoo dot com
29-Nov-2003 02:04


I find using file_get_contents with php://input is very handy and efficient. Here is the code:



$request = "";

$request = file_get_contents("php://input");



I don't need to declare the URL filr string as "r". It automatically handles open the file with read.



I can then use this $request string to your XMLparser as data.

sam at bigwig dot net
15-Aug-2003 08:02


[ Editor's Note: There is a way to know.  All response headers (from both the final responding server and intermediate redirecters) can be found in $http_response_header or stream_get_meta_data() as described above. ]





If you open an HTTP url and the server issues a Location style redirect, the redirected contents will be read but you can't find out that this has happened.





So if you then parse the returned html and try and rationalise relative URLs you could get it wrong.

add a note

MANUAL DE PHP

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ApÃ©ndice M. Lista de Protocolos/Envolturas Soportadas

Sistema de archivos