public function formatPostParameters(Array $postParameters=array())
    {
        $guzzleParams = array();
        /**
         * There are three possibile inputs for $postParameter values.  Strings, Curlfiles, and arrays.
         * This look should process them in to something that Guzzle understands.
         */
        foreach ($postParameters as $key => $value) {
            if ($value instanceof \CURLFile) {
                $guzzleParams[] = array(
                    'name' => $key, 
                    'contents' => fopen($value->getFilename(), 'r'), 
                    'filename' => $value->getPostFilename()
                );
            } else if (is_array($value)) {
                foreach ($value as $val) $guzzleParams[] = array('name' => $key . '[]', 'contents' => "$val");
            } else {
                $guzzleParams[] = array('name' => $key, 'contents' => "$value");
            }
        }
        
        return $guzzleParams;
    }
public function formatPostParameters(Array $postParameters=array())
    {
        $guzzleParams = array();
        /**
         * There are three possibile inputs for $postParameter values.  Strings, Curlfiles, and arrays.
         * This look should process them in to something that Guzzle understands.
         */
        foreach ($postParameters as $key => $value) {
            if ($value instanceof \CURLFile) {
                $guzzleParams[] = array(
                    'name' => $key, 
                    'contents' => fopen($value->getFilename(), 'r'), 
                    'filename' => $value->getPostFilename()
                );
            } else if (is_array($value)) {
                foreach ($value as $val) $guzzleParams[] = array('name' => $key . '[]', 'contents' => "$val");
            } else {
                $guzzleParams[] = array('name' => $key, 'contents' => "$value");
            }
        }
        
        return $guzzleParams;
    }
Return a Guzzle post parameter array that can be entered in to the 'multipart'
argument of a post request.  For details on this, see the Guzzle
documentation here: http://docs.guzzlephp.org/en/latest/request-options.html#multipart

@params  Array   $postParameters
@return  Array