Processing HTTP Post with Array (no cURL)

Question

function do_post_request($url, $data, $optional_headers = null)
{
  $params = array('http' => array(
              'method' => 'POST',
              'content' => $data
            ));
  if ($optional_headers !== null) {
    $params['http']['header'] = $optional_headers;
  }
  $ctx = stream_context_create($params);
  $fp = @fopen($url, 'rb', false, $ctx);
 if (!$fp) {
    throw new Exception("Problem with $url, $php_errormsg");
  }
  $response = @stream_get_contents($fp);
  if ($response === false) {
    throw new Exception("Problem reading data from $url, $php_errormsg");
  }
  return $response;
}

Does POST array:

$postdata = array( 
    'send_email' => $_REQUEST['send_email'], 
    'send_text' => $_REQUEST['send_text']);

How can I get individual array element to individual PHP var?

Part of a page of POST data processor:

...
$message = $_REQUEST['postdata']['send_text'];
...

What's Wrong?

Can you try and clarify exactly what the problem is that you are having? Are you getting any error messages? Or is the problem related to the script at the other side, the page you are sending data to? — DaveRandom
– DaveRandom, Commented Oct 19, 2011 at 15:03

DaveRandom · Accepted Answer · 2011-10-19 21:12:41Z

1

Try this:

At the client side:

function do_post_request ($url, $data, $headers = array()) {
  // Turn $data into a string
  $dataStr = http_build_query($data);
  // Turn headers into a string
  $headerStr = '';
  foreach ($headers as $key => $value) if (!in_array(strtolower($key),array('content-type','content-length'))) $headerStr .= "$key: $value\r\n";
  // Set standard headers
  $headerStr .= 'Content-Length: '.strlen($data)."\r\nContent-Type: application/x-www-form-urlencoded"
  // Create a context
  $context = stream_context_create(array('http' => array('method' => 'POST', 'content' => $data, 'header' => $headerStr)));
  // Do the request and return the result
  return ($result = file_get_contents($url, FALSE, $context)) ? $result : FALSE;
}

$url = 'http://sub.domain.tld/file.ext';
$postData = array( 
  'send_email' => $_REQUEST['send_email'], 
  'send_text' => $_REQUEST['send_text']
);
$extraHeaders = array(
  'User-Agent' => 'My HTTP Client/1.1'
);

var_dump(do_post_request($url, $postData, $extraHeaders));

At the server side:

print_r($_POST);
/*
  Outputs something like:
    Array (
      [send_email] => Some Value
      [send_text] => Some Other Value
    )
*/

$message = $_POST['send_text'];
echo $message;
// Outputs something like: Some Other Value

answered Oct 19, 2011 at 21:12

DaveRandom

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1 Comment

user985818 Over a year ago

Thank you very much. Mistake was simple.

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