The following is a list of the various URL style protocols that PHP has built-in for use with the filesystem functions such as fopen() and copy(). In addition to these wrappers, as of PHP 4.3.0, you can write your own wrappers using PHP script and stream_wrapper_register().

Filesystem

All versions of PHP. Explicitly using file:// since PHP 4.3.0

/path/to/file.ext
relative/path/to/file.ext
fileInCwd.ext
C:/path/to/winfile.ext
C:\path\to\winfile.ext
\\smbserver\share\path\to\winfile.ext
file:///path/to/file.ext

Filesystem is the default wrapper used with PHP and represents the local filesystem. When a relative path is specified (a path which does not begin with /, \, \\, or a windows drive letter) the path provided will be applied against the current working directory. In many cases this is the directory in which the script resides unless it has been changed. Using the CLI sapi, this defaults to the directory from which the script was called.

With some functions, such as fopen() and file_get_contents(), include_path may be optionally searched for relative paths as well.

Таблица M-1. Wrapper Summary

Attribute	Supported
Restricted by allow_url_fopen	No
Allows Reading	Yes
Allows Writing	Yes
Allows Appending	Yes
Allows Simultaneous Reading and Writing	Yes
Supports stat()	Yes
Supports unlink()	Yes
Supports rename()	Yes
Supports mkdir()	Yes
Supports rmdir()	Yes

add a note User Contributed Notes
List of Supported Protocols/Wrappers

jerry at gii dot co dot jp
17-Aug-2007 10:11


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
14-Jun-2007 04:25


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 02:57


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 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

Приложение M. List of Supported Protocols/Wrappers

Filesystem