Get the last four digits and card type from an Offline Credit Card order in PrestaShop.

lastfour-and-type.php

<?php
protected function getCardType( $ccNum ) {
		if (preg_match("/^5[1-5][0-9]{14}$/", $ccNum))
			return "Mastercard";

		if (preg_match("/^4[0-9]{12}([0-9]{3})?$/", $ccNum))
			return "Visa";

		if (preg_match("/^3[47][0-9]{13}$/", $ccNum))
			return "American Express";

		if (preg_match("/^3(0[0-5]|[68][0-9])[0-9]{11}$/", $ccNum))
			return "Diners Club";

		if (preg_match("/^6011[0-9]{12}$/", $ccNum))
			return "Discover";

		if (preg_match("/^(3[0-9]{4}|2131|1800)[0-9]{11}$/", $ccNum))
			return "JCB";
	}
/**
	 * Retrieve the last four digits and card type for an order
	 * @author Gabe Shackle <gabe.shackle@gmail.com>
	 * @param  int $order_id Order ID to retrieve data from
	 * @return mixed           Array containing the found data or false if not found
	 */
	public function getLastFourAndType( $order_id = null ) {
		include(dirname(__FILE__).'/serialkey.php');
		include_once(dirname(__FILE__) . '/PrestoChangeoClasses/EncryptDecrypt.php');
		$crypt = new encryption_class();
		$result = Db::getInstance()->ExecuteS('
			SELECT
			occ.info1, occ.info2, occ.info3, occ.info4, occ.info5, occ.info6, occ.info7, occ.info8, occ.info9, o.id_address_invoice, o.id_currency, o.total_paid
			FROM '._DB_PREFIX_.'offlinecreditcard_info occ 
			LEFT JOIN '._DB_PREFIX_.'orders o on occ.id_order = o.id_order 
			WHERE occ.id_order='.$order_id
		);
		if (is_array($result) && sizeof($result) > 0) {
			$card_number = $crypt->decrypt( $cryptkey, $result[0]['info2'] );
			return array( 
				'last_four' => substr( $card_number, -4 ),
				'type' => $this->getCardType( $card_number )
			);
		} else {
			return false;
		}
	}

sample-usage.php

<?php
	function hookOrderConfirmation($params)
	{
		$order = $params['objOrder'];
		// var_dump( $params );
		$cart = new Cart( (int) $order->id_cart );

		$occObject = new OfflineCreditCard();
		$card_info = $occObject->getLastFourAndType( $order->id );
		
		$last_four_digits = $card_info['last_four'];
		$card_type = $card_info['type'];
	}