protected function calculateRequestLength(&$headers)
    {
        $this->requestBody = $this->request->getBody();

        if (is_string($this->requestBody)) {
            $this->contentLength = strlen($this->requestBody);
        } elseif (is_resource($this->requestBody)) {
            $stat = fstat($this->requestBody);
            $this->contentLength = $stat['size'];
            rewind($this->requestBody);
        } else {
            $this->contentLength = $this->requestBody->getLength();
            $headers['content-type'] = 'multipart/form-data; boundary=' .
                                       $this->requestBody->getBoundary();
            $this->requestBody->rewind();
        }

        if (in_array($this->request->getMethod(), self::$bodyDisallowed)
            || 0 == $this->contentLength
        ) {
            // No body: send a Content-Length header nonetheless (request #12900),
            // but do that only for methods that require a body (bug #14740)
            if (in_array($this->request->getMethod(), self::$bodyRequired)) {
                $headers['content-length'] = 0;
            } else {
                unset($headers['content-length']);
                // if the method doesn't require a body and doesn't have a
                // body, don't send a Content-Type header. (request #16799)
                unset($headers['content-type']);
            }
        } else {
            if (empty($headers['content-type'])) {
                $headers['content-type'] = 'application/x-www-form-urlencoded';
            }
            // Content-Length should not be sent for chunked Transfer-Encoding (bug #20125)
            if (!isset($headers['transfer-encoding'])) {
                $headers['content-length'] = $this->contentLength;
            }
        }
    }
protected function calculateRequestLength(&$headers)
    {
        $this->requestBody = $this->request->getBody();

        if (is_string($this->requestBody)) {
            $this->contentLength = strlen($this->requestBody);
        } elseif (is_resource($this->requestBody)) {
            $stat = fstat($this->requestBody);
            $this->contentLength = $stat['size'];
            rewind($this->requestBody);
        } else {
            $this->contentLength = $this->requestBody->getLength();
            $headers['content-type'] = 'multipart/form-data; boundary=' .
                                       $this->requestBody->getBoundary();
            $this->requestBody->rewind();
        }

        if (in_array($this->request->getMethod(), self::$bodyDisallowed)
            || 0 == $this->contentLength
        ) {
            // No body: send a Content-Length header nonetheless (request #12900),
            // but do that only for methods that require a body (bug #14740)
            if (in_array($this->request->getMethod(), self::$bodyRequired)) {
                $headers['content-length'] = 0;
            } else {
                unset($headers['content-length']);
                // if the method doesn't require a body and doesn't have a
                // body, don't send a Content-Type header. (request #16799)
                unset($headers['content-type']);
            }
        } else {
            if (empty($headers['content-type'])) {
                $headers['content-type'] = 'application/x-www-form-urlencoded';
            }
            // Content-Length should not be sent for chunked Transfer-Encoding (bug #20125)
            if (!isset($headers['transfer-encoding'])) {
                $headers['content-length'] = $this->contentLength;
            }
        }
    }
protected function calculateRequestLength ( & $ headers ) { $ this -> requestBody = $ this -> request -> getBody ( ) ; if ( is_string ( $ this -> requestBody ) ) { $ this -> contentLength = strlen ( $ this -> requestBody ) ; } elseif ( is_resource ( $ this -> requestBody ) ) { $ stat = fstat ( $ this -> requestBody ) ; $ this -> contentLength = $ stat [ 'size' ] ; rewind ( $ this -> requestBody ) ; } else { $ this -> contentLength = $ this -> requestBody -> getLength ( ) ; $ headers [ 'content-type' ] = 'multipart/form-data; boundary=' . $ this -> requestBody -> getBoundary ( ) ; $ this -> requestBody -> rewind ( ) ; } if ( in_array ( $ this -> request -> getMethod ( ) , self :: $ bodyDisallowed ) || 0 == $ this -> contentLength ) { // No body: send a Content-Length header nonetheless (request #12900),
 // but do that only for methods that require a body (bug #14740)
 if ( in_array ( $ this -> request -> getMethod ( ) , self :: $ bodyRequired ) ) { $ headers [ 'content-length' ] = 0 ; } else { unset ( $ headers [ 'content-length' ] ) ; // if the method doesn't require a body and doesn't have a
 // body, don't send a Content-Type header. (request #16799)
 unset ( $ headers [ 'content-type' ] ) ; } } else { if ( empty ( $ headers [ 'content-type' ] ) ) { $ headers [ 'content-type' ] = 'application/x-www-form-urlencoded' ; } // Content-Length should not be sent for chunked Transfer-Encoding (bug #20125)
 if ( ! isset ( $ headers [ 'transfer-encoding' ] ) ) { $ headers [ 'content-length' ] = $ this -> contentLength ; } } }
Calculates length of the request body, adds proper headers

@param array &$headers associative array of request headers, this method
will add proper 'Content-Length' and 'Content-Type'
headers to this array (or remove them if not needed)
Calculates length of the request body adds proper headers