[edit] Last updated: Fri, 25 May 2012

Protocolos y Envolturas soportados

PHP incorpora de serie envolturas para distintos protocolos tipo URL para trabajar junto con funciones del sistema de ficheros, como fopen(), copy(), file_exists() y filesize(). Además de estas envolturas, se pueden definir por el usuario utilizando la función stream_wrapper_register().

Nota: La sintaxis de URL que se utiliza para describir una envoltura solo puede ser scheme://.... Las sintaxis scheme:/ y scheme: no están soportadas.

Tabla de contenidos

file:// — Acceso al sistema de ficheros local
http:// — Acceso a URLS en HTTP(s)
ftp:// — Acceso a URLs por FTP(s)
php:// — Acceso a distintos flujos de E/S
zlib:// — Flujos de compresión
data:// — Data (RFC 2397)
glob:// — Encuentra las rutas que coincidan con el patrón
phar:// — Archivo PHP
ssh2:// — Secure Shell 2
rar:// — RAR
ogg:// — Flujos de audio
expect:// — Flujos de Interacción de Procesos

file://

Contexto parámetros

[edit] Last updated: Fri, 25 May 2012

add a note User Contributed Notes Protocolos y Envolturas soportados

Toby 18-May-2012 04:12


Dangerous stuff. Had php injection attacks like:



?-dallow_url_include%253don+-dauto_prepend_file%253dphp://input



due to this

Anonymous 04-May-2012 01:00


For php://filter the /resource=foo part must come last. And foo needs no escaping at all.

php://filter/resource=foo/read=somefilter would try to open a file 'foo/read=somefilter' while php://filter/read=somefilter/resource=foo will open file 'foo' with the somefilter filter applied.

Rakesh Verma [rakeshnsony at gmail dot com] 19-Mar-2012 04:18


/**********************************/

Example JSON Request:

{

    "username" : "rakeshnsony",

    "password" : "abcdefg"

}

/**********************************/

<?php



//To access json format data

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

$requestBody = json_decode($requestBody);



echo "username is: ".$requestBody->username;



echo "<br /><br />";



echo "password is: ".$requestBody->password;

//

leonid at shagabutdinov dot com 22-Jul-2011 03:45


For https for windows enable this extension:



extension=php_openssl.dll

kwedeth at gmail dot com 24-May-2011 12:04


When daisy-chaining wrappers, I've found that the stream context only applies to the outside wrapper. For example, the following code will not work:





<?php





$options = array('http'=>array('header'=>"Accept-Encoding: gzip\r\n"));


$context = stream_context_create($options);





$html = file_get_contents('compress.zlib://http://example.com/resource.gz', 0, $context);





?>





The context in this case is useless for the compress.zlib:// wrapper but it does not get applied to http:// and the header will not be sent.

sebastian dot krebs at kingcrunch dot de 04-Feb-2011 09:49


The stream php://temp/maxmemory:$limit stores the data in memory unless the limit is reached. Then it will write the whole content the a temporary file and frees the memory. I didnt found a way to get at least some of the data back to memory.

gjaman at gmail dot com 15-May-2008 08:15


You can decompress (gzip) a input stream by combining wrappers:



eg:  $x = file_get_contents("compress.zlib://php://input"); 



I used this method to decompress a gzip stream that was pushed to my webserver

jerry at gii dot co dot jp 17-Aug-2007 04:11


Not only are STDIN, STDOUT, and STDERR only allowed for CLI programs, but they are not allowed for programs that are read from STDIN. That can confuse you if you try to type in a simple test program.

sander at medicore dot nl 13-Jun-2007 10:25


to create a raw tcp listener system i use the following:



xinetd daemon with config like:

service test

{

        disable      = no

        type         = UNLISTED

        socket_type  = stream

        protocol     = tcp

        bind         = 127.0.0.1

        port         = 12345

        wait         = no

        user         = apache

        group        = apache

        instances    = 10

        server       = /usr/local/bin/php

        server_args  = -n [your php file here]

        only_from    = 127.0.0.1 #gotta love the security#

        log_type     = FILE /var/log/phperrors.log

        log_on_success += DURATION

}



now use fgets(STDIN) to read the input. Creates connections pretty quick, works like a charm.Writing can be done using the STDOUT, or just echo. Be aware that you're completely bypassing the webserver and thus certain variables will not be available.

ben dot johansen at gmail dot com 25-Oct-2006 08:57


followup:



I found that if I added this line to the AJAX call, the values would show up in the $_POST



xhttp.setRequestHeader('Content-Type',

'application/x-www-form-urlencoded');

ben dot johansen at gmail dot com 29-Aug-2006 05:02


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 28-Aug-2006 06:33


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 01:55


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 05:07


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 03:28


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

while php://input doesn't.

drewish at katherinehouse dot com 24-Sep-2005 05:50


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 06:52


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 23-Sep-2004 09:16


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 26-May-2004 09:34


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 28-Nov-2003 07:04


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 02:02


[ 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.

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