uploadObjects.php

    public function uploadObjects(array $files, array $commonHeaders = array())
    {
        $requests = $entities = array();

        foreach ($files as $entity) {
            
            if (empty($entity['name'])) {
	            throw new Exceptions\InvalidArgumentError('You must provide a name.');
	        }
            
            if (!empty($entity['path']) && file_exists($entity['path'])) {
            	$body = fopen($entity['path'], 'r+');

	        } elseif (!empty($entity['body'])) {
	            $body = $entity['body'];
	        } else {
	            throw new Exceptions\InvalidArgumentError('You must provide either a readable path or a body');
	        }
	        
            $entityBody = $entities[] = EntityBody::factory($body);

            // @codeCoverageIgnoreStart
            if ($entityBody->getContentLength() >= 5 * Size::GB) {
                throw new Exceptions\InvalidArgumentError(
                    'For multiple uploads, you cannot upload more than 5GB per '
                    . ' file. Use the UploadBuilder for larger files.'
                );
            }
            // @codeCoverageIgnoreEnd

            // Allow custom headers and common
            $headers = (isset($entity['headers'])) ? $entity['headers'] : $commonHeaders;

            $url = clone $this->getUrl();
            $url->addPath($entity['name']);

            $requests[] = $this->getClient()->put($url, $headers, $entityBody);
        }

        $responses = $this->getClient()->send($requests);

        foreach ($entities as $entity) {
            $entity->close();
        }

        return $responses;
    }