Curl\Curl::delete PHP Method

    public function delete($url, $query_parameters = array(), $data = array())
    {
        if (is_array($url)) {
            $data = $query_parameters;
            $query_parameters = $url;
            $url = $this->baseUrl;
        }
        $this->setUrl($url, $query_parameters);
        $this->setOpt(CURLOPT_CUSTOMREQUEST, 'DELETE');
        $this->setOpt(CURLOPT_POSTFIELDS, $this->buildPostData($data));
        return $this->exec();
    }

 /**
  * @param string $apiKey
  * @param string $apiSecret
  * @param int    $subAccountId
  *
  * @return AccountResponse
  */
 public static function deleteSubAccount($apiKey, $apiSecret, $subAccountId)
 {
     $apiEndpoint = sprintf('%s/subaccounts/%s', self::API_URL, $subAccountId);
     $curl = new Curl();
     $curl->delete($apiEndpoint, json_encode(['api_key' => $apiKey, 'api_secret' => $apiSecret]));
     return self::parseResponse($curl);
 }