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Digg Appendix O. List of Supported Protocols/WrappersTable of Contents 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(). All versions of PHP. Explicitly using
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(),
Code Examples / Notes » wrapperssam
[ 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. nargy
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 ! \n"); fclose($fp); sander
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. aidan
The contants: * STDIN * STDOUT * STDERR Were introduced in PHP 4.3.0 and are synomous with the fopen('php://stdx') result resource. nyvsld
php://stdin supports fseek() and fstat() function call, while php://input doesn't. opedroso
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. jerry
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.
ben dot johansen
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); chris
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).
lupti
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. heitorsiller
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. ben dot johansen
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'); drewish
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. |
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History of PHP and related projects Migrating from PHP 5.1.x to PHP 5.2.x Migrating from PHP 5.0.x to PHP 5.1.x Migrating from PHP 4 to PHP 5 Migrating from PHP 3 to PHP 4 Migrating from PHP/FI 2 to PHP 3 Debugging PHP Configure options php.ini directives List of Supported Timezones Extension Categorization List of Function Aliases List of Reserved Words List of Resource Types List of Supported Protocols/Wrappers List of Available Filters List of Supported Socket Transports PHP type comparison tables List of Parser Tokens Userland Naming Guide |
