Using fopen() to post information to other. is it possible?

[brij_theinvader]

how does i post information from my webpage to a remote website without redirecting the control to that site?

The remote website is :
http://www.nycharities.org/donate/c_donate.asp?CharityCode=1708

I guess i can do it by using cURL. But it will be better if some one gives example by using fopen() and http wrapper.

Thanks in advance.

[bradgrafelman]

brij_theinvader wrote:

But it will be better if some one gives example by using fopen() and http wrapper.

My first respones upon reading the thread title was cURL, hands down. Why would fopen() be "better" ?

I mean, it's certainly possible; all you'd have to do is open a socket on port 80, write the appropriate HTTP headers, encode the POST data properly, and then listen for a response (if necessary). Don't have a clue what HTTP headers you need or how to properly encode the POST data? Well, that's partly why the cURL library was made! :p

[MarkR]

Here's one I made earlier.

/*
 * Sends a form-encoded HTTP(S) POST to a given URL.
 * Returns a string containing the response.
 *
 * If response code is not 200, throws an error msg.
 */
function SendHttpPost($url, & $fields)
{
	$urlencoded = '';
	foreach (array_keys($fields) as $key) {
		$urlencoded = $urlencoded . "$key=" . rawurlencode($fields[$key]);
		$urlencoded .= '&';
	}
	$context_options = array(
		'http'=>array(
		'method'=>"POST",
		'header'=>"Accept-language: en\r\n" .
			"Content-length: " . strlen($urlencoded) . "\r\n" .
			"Content-type:application/x-www-form-urlencoded\r\n",
		'content'=> $urlencoded)
	);
	// Make sure the HTTPS options are the same as HTTP
	$context_options['https'] = $context_options['http'];
	$context = stream_context_create($context_options);
	$fp = fopen($url, 'r', false, $context);
	// Get the response...
	$response = '';
	/* For HTTPS, IIS closes the SSL socket improperly hence
	 * generating a warning. We want to suppress this, as some
	 * servers will be doing this.
	 *
	 * see http://uk.php.net/manual/en/wrappers.http.php
	 */
	$old_error_reporting = error_reporting();
	error_reporting($old_error_reporting & ~E_WARNING);
	// Get the headers
	$metadata = stream_get_meta_data($fp);
	foreach($metadata['wrapper_data'] as $responseheader) {
		// Look for the status header...
		if (substr($responseheader,0,5) == 'HTTP/') {
			$bits = split(' ', $responseheader);
			$httpstatus = (int) $bits[1];
			$httpstatusmessage = $responseheader;
		}
	}
	// There is no need to check the HTTP status, as fopen wrapper
	// that for us anyway.
	// Read the the response data
	while (!feof($fp)) {
		$response .= fread($fp, 8192);
	}
	fclose($fp);
	error_reporting($old_error_reporting);
	return $response;
}

Sends a form-encoded HTTP (could be HTTPS) post using the fopen URL wrapper. Tested on PHP 5.2.1

Mark

[brij_theinvader]

Thanks Mark, very much, for the script.
Actually i wanted some information about the variable "fields" , how it should be passed. Can u show by example.
Also one more thing, this scripts redirects control to that payment site whose URL is mentioned, right? Is there any way to avoid this redirection. I don' t want the user to be redirected from my page. Or you can also frame it that way that the Control in a split of seconds redirects back to my web page.
Thanks for all you did. Hope this time also you reply.