<code lang="PHP">
<?php
	/*
		$objAuthorize = new Authorize();
		$objAuthorize->gatewayParam['x_login'] = "5P3wMJ7bkd5F";
		$objAuthorize->gatewayParam['x_tran_key'] = "78GXcav3867k4G4w";
		$objAuthorize->gatewayParam['x_version'] = "3.1";
		$objAuthorize->gatewayParam['x_test_request'] = "false";
		$objAuthorize->gatewayParam['x_delim_data'] = "true";
		$objAuthorize->gatewayParam['x_delim_char'] = "|";
		$objAuthorize->gatewayParam['m'] = "1";
		$objAuthorize->gatewayParam['x_first_name'] = "";
		$objAuthorize->gatewayParam['x_last_name'] = "";
		$objAuthorize->gatewayParam['x_company'] = "";
		$objAuthorize->gatewayParam['x_address'] = "";
		$objAuthorize->gatewayParam['x_city'] = "";
		$objAuthorize->gatewayParam['x_state'] = "";
		$objAuthorize->gatewayParam['x_zip'] = "";
		$objAuthorize->gatewayParam['x_country'] = "";
		$objAuthorize->gatewayParam['x_phone'] = "";
		$objAuthorize->gatewayParam['x_fax'] = "";
		$objAuthorize->gatewayParam['x_email'] = "";
		$objAuthorize->gatewayParam['x_ship_to_first_name'] = "";
		$objAuthorize->gatewayParam['x_ship_to_last_name'] = "";
		$objAuthorize->gatewayParam['x_ship_to_company'] = "";
		$objAuthorize->gatewayParam['x_ship_to_address'] = "";
		$objAuthorize->gatewayParam['x_ship_to_city'] = "";
		$objAuthorize->gatewayParam['x_ship_to_state'] = "";
		$objAuthorize->gatewayParam['x_ship_to_zip'] = "";
		$objAuthorize->gatewayParam['x_ship_to_country'] = "";
		$objAuthorize->gatewayParam['x_amount'] = "";
		$objAuthorize->gatewayParam['x_method'] = "CC";
		$objAuthorize->gatewayParam['x_type'] = "AUTH_CAPTURE";
		$objAuthorize->gatewayParam['x_card_num'] = "";
		$objAuthorize->gatewayParam['x_card_code'] = "";
		$objAuthorize->gatewayParam['x_exp_date'] = "";
		$objAuthorize->gatewayParam['x_currency_code'] = "USD";
		$objAuthorize->gatewayParam['x_relay_response'] = "false";
		$objAuthorize->gatewayParam['x_url'] = "false";

		$objAuthorize->Process();
	*/
	class Authorize {
		public $gatewayParam = array(); // It is the parameter array need to pass
		public $gatewayURL = "https://secure.authorize.net/gateway/transact.dll"; // Default url for credit card authentication. Can be changed forcefully
		private $returnFromMerchant = array(); // Gateway return values will storing into the array
		
		// Function for process the credit card
		public function Process() {
			/*
				As the process will run under curl environment, so
				first checking that curl is installed into the server or not
			*/
			if(extension_loaded("curl")==true) {
				// Storing the parameter with its value in the variable to post using carl
				foreach($this->gatewayParam as $key => $val) {
					$PostData.= $key."=".urlencode($val)."&";
				}
				$PostData = substr($PostData,0,strlen($PostData)-1);
				// Submitting the data using curl and returning after checking
				$ch = curl_init($this->gatewayURL);
				curl_setopt($ch, CURLOPT_HEADER, 0);
				curl_setopt($ch, CURLOPT_POSTFIELDS, $PostData);
				curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
				$buffer = curl_exec($ch);
				curl_close($ch);
				// Storing the return values into the array by exploding the data "|" character
				$this->returnFromMerchant = explode("|",$buffer);
			} else {
				// If curl not isntalled then showing error message
				return "CURL Error";
			}
		}
		
		// Function to return the response code after the transaction
		public function ResponseCode() {
			return $this->returnFromMerchant[0];
		}
		
		// Function to return the error code after non successful transaction
		public function ErrorCode() {
			return $this->returnFromMerchant[2];
		}
		
		// Function to return the error text after non successful transaction
		public function ErrorText() {
			return $this->returnFromMerchant[3];
		}
	}
?>
</code>