Authorize API

[eluser]mikeyhell[/eluser]
Had to write this for a project... It's somewhat unfinished and I had to take some things out for security, but this should be a good starting point for someone looking to integrate authorize.net

Part 1:

Code:

<?php


class Authorize
{

//****************************************************************************

   function __construct( $processXML )
   {
      $this->processXML = $processXML;
   }

//****************************************************************************

   /**
   * Process the Credit Card Charge
   * @param array $params An assosciative array of paramaters to pass to Authorize.net
   * @return array Array of the results from the payment gateway
   */

   function chargeCard( $params, $processor = array() )
   {
      /**
      * Configuration
      */

      $x_Login    = (string)$this->processXML->user;     // Your authorize.net login
      $x_Password = (string)$this->processXML->password; // Your authorize.net password (if Password-Required Mode is enabled)
      $x_Tran_Key = (string)$this->processXML->tranKey;  // Your authorize.net tran_key

      if( isset( $processor['user'] ) && $processor['user'] != '' )
      {
         $x_Login    = $processor['user'];
         $x_Password = $processor['password'];
         $x_Tran_Key = $processor['transactionKey'];
      }
      
      $x_Delim_Data = "TRUE";    // Delimited response from the gateway (or set in the Setting Menu)
      $x_Delim_Char = "|";       // Character that will be used to separate fields
      $x_Encap_Char = "";        // Character that will be used to encapsulate fields
      
      if( !isset( $params['transType'] ) )
      {
         $x_Type         = "AUTH_CAPTURE";  // Default transaction type
      }
      else
      {
         $xType          = $params['transType'];

         if( $params['transType'] == 'AUTHCAP' )
            $params['transType'] = 'AUTH_CAPTURE';
         else if( $params['transType'] == 'AUTH' )
            $params['transType'] = 'AUTH_ONLY';
         else if( $params['transType'] == 'CAPTURE' )
            $params['transType'] = 'PRIOR_AUTH_CAPTURE';
         else if( $params['transType'] == 'ECHECK' )
            $params['transType'] = 'AUTH_CAPTURE';

         $x_Type = $params['transType'];
      }

      $x_Test_Request = "TRUE";          // Make this a test transaction
//      $x_Test_Request = "FALSE";
      
      /**
      * Customer Information
      */

      /**
      * Required
      */

      if( $xType == 'ECHECK' )
      {
         $x_Method         = 'ECHECK';
         $x_bank_aba_code  = $params['checkRouting'];
         $x_bank_acct_num  = $params['checkAccount'];
         $x_bank_acct_type = $params['checkType'];
         $x_bank_name      = $params['checkBankName'];
         $x_bank_acct_name = $params['checkName'];

         if( $params['checkType'] == 'BUSINESSCHECKING' )
            $x_echeck_type = 'CCD';
         else
            $x_echeck_type    = 'WEB';
      }
      else
      {
         $x_Method     = "CC";
         $x_Card_Num   = $params['ccardNum'];

         if( strlen( $params['expirationDate'] ) == 3 )
            $params['expirationDate'] = '0' . $params['expirationDate'];
      
         $x_Exp_Date   = $params['expirationDate'][0] . $params['expirationDate'][1] . '/' .
                         $params['expirationDate'][2] . $params['expirationDate'][3];
      }

      $x_Amount     = $params['totalAmount'];
      $x_First_Name = $params['firstName'];
      $x_Last_Name  = $params['lastName'];

      if( ( $xType == 'CREDIT' || $xType == 'VOID' ) && $x_Amount < 0 )
      {
         $x_Amount = ( $x_Amount * -1 );
      }

      /**
      * Optional
      */

      if( $params['description'] != '' )
         $x_Description = $params['description'];
      else if( $params['comment'] != '' )
         $x_Description = $params['comment'];
      else
         $x_Description = $params['comments'];

      if( isset( $params['zip'] ) )
         $x_Zip = $params['zip'];
      else if( isset( $params['postalCode'] ) )
         $x_Zip = $params['postalCode'];
      else
         $x_Zip = $params['zipPostalCode'];

      if( isset( $x_Zip ) )
         $x_Zip = strtoupper( str_replace( ' ', '', $x_Zip ) );

      //$x_Zip             = isset( $params['zip'] ) ? $params['zip'] : $params['postalCode'];

      $x_Company         = $params['company'];
      $x_Address         = isset( $params['address'] ) ? $params['address'] : $params['address1'];
      $x_City            = $params['city'];
      $x_State           = isset( $params['state'] ) ? $params['state'] : $params['stateProvince'];
      $x_Country         = $params['country'];
      $x_Phone           = $params['phone'];
      $x_Fax             = $params['fax'];
      $x_Cust_Id         = isset( $params['custId'] ) ? $params['custId'] : $params['userId'];
      $x_Customer_Ip     = $params['customerIp'];
      $x_Customer_Tax_Id = $params['customerTaxId'];
      $x_Invoice_Num     = isset( $params['invoiceNum'] ) ? $params['invoiceNum'] : $params['invoiceId'];
      $x_CVV2            = $params['cvv2'];