관리-도구

편집 파일: cc_validation.php

<?php
/**
 * cc_validation Class.
 *
 * @copyright Copyright 2003-2023 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: Scott C Wilson 2022 Oct 16 Modified in v1.5.8a $
 */
if (!defined('IS_ADMIN_FLAG')) {
  die('Illegal Access');
}
/**
 * cc_validation Class.
 * Class to validate credit card numbers etc
 *
 */
class cc_validation extends base {
  public $cc_type, $cc_number, $cc_expiry_month, $cc_expiry_year;

if (is_numeric($expiry_m) && ($expiry_m > 0) && ($expiry_m < 13)) {
      $this->cc_expiry_month = $expiry_m;
    } else {
      return -2;
    }

$current_year = date('Y');
    if (strlen($expiry_y) == 2) $expiry_y = intval(substr($current_year, 0, 2) . $expiry_y);
    if (is_numeric($expiry_y) && ($expiry_y >= $current_year) && ($expiry_y <= ($current_year + 10))) {
      $this->cc_expiry_year = $expiry_y;
    } else {
      return -3;
    }

if ($expiry_y == $current_year) {
      if ($expiry_m < date('n')) {
        return -4;
      }
    }

// check the issue month & year but only for Switch/Solo cards
    if (($start_m || $start_y) && in_array($this->cc_type, array('Switch', 'Solo'))) {
      if (!(is_numeric($start_m) && ($start_m > 0) && ($start_m < 13))) {
        return -2;
      }

if (strlen($start_y) == 2) {
        if ($start_y > 80) {
          $start_y = intval('19' . $start_y);
        } else {
          $start_y = intval('20' . $start_y);
        }
      }

if (!is_numeric($start_y) || ($start_y > $current_year)) {
        return -3;
      }
      if (!($start_y >= ($current_year - 10))) {
        return -3;
      }
    }
    return $this->is_valid();
  }

function is_valid() {
    $cardNumber = strrev($this->cc_number);
    $numSum = 0;

for ($i=0; $i<strlen($cardNumber); $i++) {
      $currentNum = substr($cardNumber, $i, 1);

// Double every second digit
      if ($i % 2 == 1) {
        $currentNum *= 2;
      }

// Add digits of 2-digit numbers together
      if ($currentNum > 9) {
        $firstNum = $currentNum % 10;
        $secondNum = ($currentNum - $firstNum) / 10;
        $currentNum = $firstNum + $secondNum;
      }

$numSum += $currentNum;
    }

// If the total has no remainder it's OK
    return ($numSum % 10 == 0);
  }
}