/** * Get normalized parameters * * @return String - Normalized Parameters */ private function getNormalizedParameters() { $params = $this->parameters; // Remove oauth_signature if present // Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.") if (isset($params['oauth_signature'])) { unset($params['oauth_signature']); } return OAuthUtils::buildHTTPQuery($params); }