/**
 * PHP随机生成信用卡卡号代码
 *
 * @param 
 * @arrange 512-笔记网： www.jb51.cc
 **/
<?PHP
$visaPrefixList[] =  "4539";
$visaPrefixList[] =  "4556";
$visaPrefixList[] =  "4916";
$visaPrefixList[] =  "4532";
$visaPrefixList[] =  "4929";
$visaPrefixList[] =  "40240071";
$visaPrefixList[] =  "4485";
$visaPrefixList[] =  "4716";
$visaPrefixList[] =  "4";
$mastercardPrefixList[] =  "51";
$mastercardPrefixList[] =  "52";
$mastercardPrefixList[] =  "53";
$mastercardPrefixList[] =  "54";
$mastercardPrefixList[] =  "55";
$amexPrefixList[] =  "34";
$amexPrefixList[] =  "37";
$discoverPrefixList[] = "6011";
$dinersPrefixList[] =  "300";
$dinersPrefixList[] =  "301";
$dinersPrefixList[] =  "302";
$dinersPrefixList[] =  "303";
$dinersPrefixList[] =  "36";
$dinersPrefixList[] =  "38";
$enRoutePrefixList[] =  "2014";
$enRoutePrefixList[] =  "2149";
$jcbPrefixList[] =  "35";
$voyagerPrefixList[] = "8699";
/*
'prefix' is the start of the CC number as a string,any number of digits.
'length' is the length of the CC number to generate. Typically 13 or 16
*/
function completed_number($prefix,$length) {
	$ccnumber = $prefix;
	# generate digits
	while ( strlen($ccnumber) < ($length - 1) ) {
		$ccnumber .= rand(0,9);
	}
	# Calculate sum
	$sum = 0;
	$pos = 0;
	$reversedCCnumber = strrev( $ccnumber );
	while ( $pos < $length - 1 ) {
		$odd = $reversedCCnumber[ $pos ] * 2;
		if ( $odd > 9 ) {
			$odd -= 9;
		}
		$sum += $odd;
		if ( $pos != ($length - 2) ) {
			$sum += $reversedCCnumber[ $pos +1 ];
		}
		$pos += 2;
	}
	# Calculate check digit
	$checkdigit = (( floor($sum/10) + 1) * 10 - $sum) % 10;
	$ccnumber .= $checkdigit;
	return $ccnumber;
}
function credit_card_number($prefixList,$length,$howMany) {
	for ($i = 0; $i < $howMany; $i++) {
		$ccnumber = $prefixList[ array_rand($prefixList) ];
		$result[] = completed_number($ccnumber,$length);
	}
	return $result;
}
function output($title,$numbers) {
	$result[] = "<div class='creditCardNumbers'>";
	$result[] = "<h3>$title</h3>";
	$result[] = implode('<br />',$numbers);
	$result[]= '</div>';
	return implode('<br />',$result);
}
#
# Main
#
echo "<div class='creditCardSet'>";
$mastercard = credit_card_number($mastercardPrefixList,16,10);
echo output("Mastercard",$mastercard);
$visa16 = credit_card_number($visaPrefixList,10);
echo output("VISA 16 digit",$visa16);
echo "</div>";
echo "<div class='creditCardSet'>";
$visa13 = credit_card_number($visaPrefixList,13,5);
echo output("VISA 13 digit",$visa13);
$amex = credit_card_number($amexPrefixList,15,5);
echo output("American Express",$amex);
echo "</div>";
# Minor cards
echo "<div class='creditCardSet'>";
$discover = credit_card_number($discoverPrefixList,3);
echo output("Discover",$discover);
$diners = credit_card_number($dinersPrefixList,14,3);
echo output("Diners Club",$diners);
echo "</div>";
echo "<div class='creditCardSet'>";
$enRoute = credit_card_number($enRoutePrefixList,3);
echo output("enRoute",$enRoute);
$jcb = credit_card_number($jcbPrefixList,3);
echo output("JCB",$jcb);
echo "</div>";
echo "<div class='creditCardSet'>";
$voyager = credit_card_number($voyagerPrefixList,3);
echo output("Voyager",$voyager);
echo "</div>";
?>
/***   来自编程之家 jb51.cc（jb51.cc）   ***/