portal/patient/fwk/libs/verysimple/Payment/CreditCardUtil.php

   1 <?php
   2
   3 /** @package    verysimple::Payment */
   4
   5 /**
   6  * CreditCardUtil is a standard class used to work in general
   7  * with credit card processing, including clean output.
   8  *
   9  * @package verysimple::Payment
  10  * @author VerySimple Inc.
  11  * @copyright 1997-2008 VerySimple, Inc.
  12  * @license http://www.gnu.org/licenses/lgpl.html LGPL
  13  * @version 1.0
  14  */
  15 class CreditCardUtil
  16 {
  17     /**
  18      * Formats the given credit card number with dashes.
  19      *
  20      * @param
  21      *          string credit card number
  22      * @return string
  23      */
  24     static function FormatWithDashes($cc_num)
  25     {
  26         $dashSeparatedNumber = "";
  27
  28         if (strlen($cc_num) == 15) {
  29             $firstFour = substr($cc_num, 0, 4);
  30             $secondSix = substr($cc_num, 4, 6);
  31             $thirdFive = substr($cc_num, 10, 5);
  32             $dashSeparatedNumber = $firstFour . "-" . $secondSix . "-" . $thirdFive;
  33         } else {
  34             $firstFour = substr($cc_num, 0, 4);
  35             $secondFour = substr($cc_num, 4, 4);
  36             $thirdFour = substr($cc_num, 8, 4);
  37             $fourthFour = substr($cc_num, 12, 4);
  38             $dashSeparatedNumber = $firstFour . "-" . $secondFour . "-" . $thirdFour . "-" . $fourthFour;
  39         }
  40
  41         return $dashSeparatedNumber;
  42     }
  43
  44     /**
  45      * Returns a number with all non-numeric characters removed
  46      *
  47      * @param unknown_type $num
  48      */
  49     static function StripNonNumeric($num)
  50     {
  51         return preg_replace('{\D}', '', $num);
  52     }
  53
  54     /**
  55      * Returns true if the card meets a valid mod10 (Luhn Algorithm) check
  56      *
  57      * @param
  58      *          bool
  59      */
  60     static function IsValidMod10($str)
  61     {
  62         if (strspn($str, "0123456789") != strlen($str)) {
  63             return false;
  64         }
  65
  66         $map = array (
  67                 0,
  68                 1,
  69                 2,
  70                 3,
  71                 4,
  72                 5,
  73                 6,
  74                 7,
  75                 8,
  76                 9, // for even indices
  77                 0,
  78                 2,
  79                 4,
  80                 6,
  81                 8,
  82                 1,
  83                 3,
  84                 5,
  85                 7,
  86                 9
  87         ); // for odd indices
  88         $sum = 0;
  89         $last = strlen($str) - 1;
  90
  91         for ($i = 0; $i <= $last; $i ++) {
  92             $sum += $map [$str [$last - $i] + ($i & 1) * 10];
  93         }
  94
  95         return $sum % 10 == 0;
  96     }
  97
  98     /**
  99      * Returns the Credit Card type based on the card number using the info
 100      * at http://en.wikipedia.org/wiki/Credit_card_numbers as a reference
 101      *
 102      * @return string
 103      */
 104     static function GetType($num)
 105     {
 106         $firstOne = substr($num, 0, 1);
 107
 108         if (strlen($num) < 4) {
 109             return "";
 110         }
 111
 112         if ($firstOne == 4) {
 113             return "Visa";
 114         }
 115
 116         $firstTwo = substr($num, 0, 2);
 117         if ($firstTwo == 34 || $firstTwo == 37) {
 118             return "AmEx";
 119         }
 120
 121         if ($firstTwo >= 51 && $firstTwo <= 55) {
 122             return "MasterCard";
 123         }
 124
 125         if ($firstTwo == 36 || $firstTwo == 38 || $firstTwo == 54 || $firstTwo == 55) {
 126             return "Diners Club";
 127         }
 128
 129         $firstThree = substr($num, 0, 3);
 130         if ($firstThree >= 300 && $firstThree <= 305) {
 131             return "Carte Blanche";
 132         }
 133
 134         if ($firstThree >= 644 && $firstThree <= 649) {
 135             return "Discover";
 136         }
 137
 138         $firstFour = substr($num, 0, 4);
 139         if ($firstFour == 6011) {
 140             return "Discover";
 141         }
 142
 143         if ($firstFour == 2014 || $firstFour == 2149) {
 144             return "enRoute";
 145         }
 146
 147         if ($firstFour == 6011) {
 148             return "Discover";
 149         }
 150
 151         $firstSix = substr($num, 0, 6);
 152         if ($firstSix >= 622126 && $firstSix <= 622925) {
 153             return "Discover";
 154         }
 155
 156         if ($firstOne == 3) {
 157             return "JCB";
 158         }
 159
 160         if ($firstFour == 2131 || $firstFour == 1800) {
 161             return "JCB";
 162         }
 163
 164         return "Other";
 165     }
 166 }