function DownloadToString()
{
// store errors in case we need to handle them
$errno;
$errstr;
$response = '';
$crlf = "\r\n";
// generate request
$req = 'GET ' . $this->_uri . ' HTTP/1.0' . $crlf . 'Host: ' . $this->_host . $crlf . $crlf;
// fetch from URL
$this->_fp = fsockopen(($this->_protocol == 'https' ? 'ssl://' : '') . $this->_host, $this->_port, $errno, $errstr, $this->_timeout);
fwrite($this->_fp, $req);
$a_vers = explode(".", phpversion());
$use_stream = TRUE;
if ($a_vers[0] <= 4 && $a_vers[1] < 3) {
// first < 4.3, then we need to use socket rather than stream
$use_stream = FALSE;
}
if ($use_stream) {
stream_set_blocking($this->_fp, TRUE);
stream_set_timeout($this->_fp, $this->_timeout);
} else {
socket_set_blocking($this->_fp, TRUE);
socket_set_timeout($this->_fp, $this->_timeout);
}
// get the socket status
$info;
if ($use_stream) {
$info = stream_get_meta_data($this->_fp);
} else {
$info = socket_get_status($this->_fp);
}
while (is_resource($this->_fp) && $this->_fp && !feof($this->_fp) && !$info['timed_out']) {
$response .= fread($this->_fp, 4096);
if ($use_stream) {
$info = stream_get_meta_data($this->_fp);
} else {
$info = socket_get_status($this->_fp);
}
@ob_flush();
flush();
}
fclose($this->_fp);
// split header and body
$pos = strpos($response, $crlf . $crlf);
if ($pos === false) {
return $response;
}
$header = substr($response, 0, $pos);
$body = substr($response, $pos + 2 * strlen($crlf));
// parse headers
$headers = array();
$lines = explode($crlf, $header);
foreach ($lines as $line) {
if (($pos = strpos($line, ':')) !== false) {
$headers[strtolower(trim(substr($line, 0, $pos)))] = trim(substr($line, $pos + 1));
}
}
// redirection?
if (isset($headers['location'])) {
$http = new dtc_HTTPRequest($headers['location']);
return $http->DownloadToString($http);
} else {
return $body;
}
}
