HTTP
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<?php
/************************************************************************
*
* PostIt - Pretend to be a form.
*
* Copyright (c) 1999 Holotech Enterprises. All rights reserved.
* You may freely modify and use this function for your own purposes. You
* may freely distribute it, without modification and with this notice
* and entire header intact.
*
* This function takes an associative array and a URL. The array is URL-
* encoded and then POSTed to the URL. If the request succeeds, the
* response, if any, is returned in a scalar array. Outputting this is the
* caller's responsibility; bear in mind that it will include the HTTP
* headers. If the request fails, an associative array is returned with the
* elements 'errno' and 'errstr' corresponding to the error number and
* error message. If you have any questions or comments, please direct
* them to postit@holotech.net
*
* Alan Little
* Holotech Enterprises
* http://www.holotech.net/
* December 1999
*
************************************************************************/
function PostIt($DataStream, $URL) {
// Strip http:// from the URL if present
$URL = ereg_replace("^http://", "", $URL);
// Separate into Host and URI
$Host = substr($URL, 0, strpos($URL, "/"));
$URI = strstr($URL, "/");
// Form up the request body
$ReqBody = "";
while (list($key, $val) = each($DataStream)) {
if ($ReqBody) $ReqBody.= "&";
$ReqBody.= $key."=".urlencode($val);
}
$ContentLength = strlen($ReqBody);
// Generate the request header
$ReqHeader =
"POST $URI HTTP/1.1n".
"Host: $Hostn".
"User-Agent: PostItn".
"Content-Type: application/x-www-form-urlencodedn".
"Content-Length: $ContentLengthnn".
"$ReqBodyn";
// Open the connection to the host
$socket = fsockopen($Host, 80, &$errno, &$errstr);
if (!$socket) {
$Result["errno"] = $errno;
$Result["errstr"] = $errstr;
return $Result;
}
$idx = 0;
fputs($socket, $ReqHeader);
while (!feof($socket)) {
$Result[$idx++] = fgets($socket, 128);
}
return $Result;
}
?>
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Usage Example
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<?php
/*
Sample code calling PostIt(). Note (no pun intended) that it is better to
test for an error result with isset() rather than simply
if ($Result["errno"])
as the error number can be zero.
*/
include("postit.php3");
$d["foo"] = "some";
$d["bar"] = "data";
$Result = PostIt($d, "http://www.mydomain.com/test/test.php3");
if (isset($Result["errno"])) {
$errno = $Result["errno"]; $errstr = $Result["errstr"];
echo "<B>Error $errno</B> $errstr";
exit;
}
else {
while (list($key, $val) = each($Result)) echo $val;
}
?>
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