cake.php

<?PHP      
class UsersController extends AppController{
  
    use Gerencianet\Exception\GerencianetException;
    use Gerencianet\Gerencianet;

    public function admin_home($id=null) {
        
        $this->layout="Adm.admin";
        $this->User->recursive = 3;
        if ($this->request->is('post')) {
            $id = $this->request->params['pass'][0];
            $user = $this->User->find('all',array(
                    'conditions'=>array(
                        'User.id'=>$id
                    )
                )
            );
            $user = $user[0]['User'];

            App::import('Vendor', 'Vendor', array('file'=>'Vendor/autoload.php'));      
            $clientId = 'Client_Id_76ca70999bb5ba6cdc876f9f101b20134039bd17';
            $clientSecret = 'Client_Secret_ba3fa57abaf8ac0ef4809fd1695ae5a0076a742c';
             
            $options = [
              'client_id' => $clientId,
              'client_secret' => $clientSecret,
              'sandbox' => true
            ];
             
            $params = [
              'id' => 1000
            ];
             
            $customer = [
              'name' => 'Gorbadoc Oldbuck',
              'cpf' => '04267484171' ,
              'phone_number' => '5144916523'
            ];
             
            $bankingBillet = [
              'expire_at' => '2018-12-12',
              'customer' => $customer
            ];
             
            $payment = [
              'banking_billet' => $bankingBillet
            ];
             
            $body = [
              'payment' => $payment
            ];
             
            try {
                $api = new Gerencianet($options);
                $charge = $api->payCharge($params, $body);
             
                print_r($charge);
            } catch (GerencianetException $e) {
                print_r($e->code);
                print_r($e->error);
                print_r($e->errorDescription);
            } catch (Exception $e) {
                print_r($e->getMessage());
            }
            
        }
    }

}