startRP.php

	/**
	 * Set recurring payment for PMGW request
	 * @param  int $amount  donation amount
	 * @return object          PMGW request
	 */
	private function startRP($amount, $provider = 'PayPal')
	{
		try {
			/**
			 * Initialize new PMGW request
			 * @var object
			 */
			$request = new \BigFish\PaymentGateway\Request\Init();

			// Set extra Reference for recurring
			$extra = [
				'REFERENCE' => [
					'BILLINGFREQUENCY' => 1,
					'BILLINGPERIOD' => 'Month',
					'PROFILESTARTDATE' => gmdate('Y-m-d\TH:i:s\Z', time()), // 2016-08-26T08:29:56Z
					'DESC' => 'Recurring donation for Transparency International Hungary',
				],
			];

			$request->setProviderName($provider) // Payment method
				->setResponseUrl($this->responseURL) // Response URL
				->setOneClickPayment(true) // One click payment for recurring payment
				->setAmount($amount) // Amount
				->setCurrency("HUF") // Currenvy
				->setOrderId($this->orderID) // Order ID
				->setLanguage($this->language) // Language
				->setExtra($extra);

			/**
			 * Init PMGW transaction
			 * @var object
			 */
			$response = \BigFish\PaymentGateway::init($request);

			if ($response->ResultCode == "SUCCESSFUL" && $response->TransactionId) {
				/**
				 * Start PMGW transaction
				 */
				$this->storeTransaction($response->TransactionId, 'recurring', $amount, $provider);
				$start_response = \BigFish\PaymentGateway::start(new \BigFish\PaymentGateway\Request\Start($response->TransactionId));
				return $start_response;
			}
			return $response;


		} catch (\BigFish\PaymentGateway\Exception $e) {
			return $e->getMessage();
		}
	}