<?
include "functioncc.phtml";

$g_blnValid = true;

// Remove any spaces or dashes in card number
//$f_strCardNum =~ s/ //g;
//$f_strCardNum =~ s/-//g;
$f_strCardNum = ereg_replace("-", "", $f_strCardNum);
$f_strCardNum = ereg_replace(" ", "", $f_strCardNum);

$g_intCardLength = strlen($f_strCardNum);
$intX = 0;
$intY = 0;
while($intY < $g_intCardLength) 
   {
   $g_arrCreditCard[$intX] = substr($f_strCardNum,$intY,1);
   if (($g_arrCreditCard[$intX] == " ") or ($g_arrCreditCard[$intX] == "-")) 
      {
      $intX--;
      } 
   elseif (($g_arrCreditCard[$intX] > "9") or ($g_arrCreditCard[$intX] < "0")) 
      {
      invalid_cc();
      }
   $intX++;
   $intY++;
   }
$g_intCardLength = $intX;

// Verify correct length for each card type
if($f_strCreditCard == "Visa") 
   {
   if($g_arrCreditCard[0] != "4") 
      {
      invalid_cc();
      } 
   else 
      {
      vlen();
      }
   } 
elseif($f_strCreditCard == "MasterCard") 
   {
   if($g_arrCreditCard[0] != "5") 
      {
      invalid_cc();
      } 
   else 
      {
      mclen();
      }
   } 
elseif($f_strCreditCard == "American Express") 
   {
   if(($g_arrCreditCard[0] != "3") and ($g_arrCreditCard[1] != "7")) 
      {
      invalid_cc();
      } 
   else 
      {
      alen();
      }
   } 
elseif($f_strCreditCard == "Novus/Discover") 
   {
   if($g_arrCreditCard[0] != "6") 
      {
      invalid_cc();
      } 
   else 
      {
      nlen();
      }
   } 
else 
   {
   if($g_arrCreditCard[0] != "3") 
      {
      invalid_cc();
      } 
   else 
      {
      olen();
      }
   }
?>