qiniu token

	public function getToken(){
		$accessKey = '';
		$secretKey = '';
		
		$bucket = "";
		
		$time = now() + 3600;

		$data = array(
				"scope"=>$bucket,
				"deadline"=>$time,
				"callbackUrl" => '',
				"callbackBody" => 'key=$(key)&state=SUCCESS&name=$(fname)&size=$(fsize)&w=$(imageInfo.width)&h=$(imageInfo.height)&user=$(endUser)',
				"endUser" => ''
			);

		$data = json_encode($data);
		$find = array('+', '/');
		$replace = array('-', '_');
		$data = str_replace($find, $replace, base64_encode($data));
		$sign = hash_hmac('sha1', $data, $secretKey, true);
		$result = $accessKey . ':' . str_replace($find, $replace, base64_encode($sign)).':'.$data ;
		echo $result;
	}