function multipost($url, $data, &$errno, &$errormessage, $timeout = 2, $headers = null)
{
// Build post data
$postdata = "--" . part::getBoundary() . "--\r\n";
$postdatalen = strlen($postdata);
for ($i = 0; $i < count($data); $i++) {
$postdatalen += $data[$i]->getLength();
}
// identify server and location from URL
$urlinfo = parse_url($url);
$header = "POST " . $urlinfo['path'] . " HTTP/1.0\r\n";
$header .= "Host: " . $urlinfo['host'] . "\r\n";
if ($headers != null) {
foreach ($headers as $name => $value) {
$header .= $name . ':' . $value . "\r\n";
}
}
$header .= "Content-type: multipart/form-data; boundary=" . part::getBoundary() . "\r\n";
$header .= "Content-length: " . $postdatalen . "\r\n\r\n";
if (isset($urlinfo['port'])) {
$port = $urlinfo['port'];
} else {
$port = 80;
}
$fp = @fsockopen($urlinfo['host'], $port, $errno, $errstr, $timeout);
# post the headers along with data
$result = '';
if ($fp) {
fwrite($fp, $header);
fwrite($fp, $postdata);
for ($i = 0; $i < count($data); $i++) {
$data[$i]->send($fp);
}
while (!feof($fp)) {
$result .= fgets($fp, 1024);
}
# close the server connection
fclose($fp);
# extract real data from result by removing headers
$begin = strpos($result, "\r\n\r\n");
$result = substr($result, $begin + 4);
# see the result
return $result;
} else {
error_log('Failed to connect to:' . $urlinfo['host'] . ':' . $port . ' - error #' . $errno . ': ' . $errstr);
return false;
}
}
