本文实例讲述了PHP随机生成信用卡卡号的方法。分享给大家供大家参考。具体分析如下：
这段PHP代码根据信用卡卡号产生规则随机生成信用卡卡号，是可以通过验证的，仅供学习参考，请不要用于非法用途，否则后果自负。
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PHP
/*
PHP credit card number generator
copyright (C) 2006 Graham King graham@darkcoding.net
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License,or (at your option) any later version.
This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or fitness FOR A PARTIculaR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not,write to the Free Software
Foundation,Inc.,51 Franklin Street,Fifth Floor,Boston,MA 02110-1301,USA.
*/
$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) {
$result[] = "
',$result); } # # Main # echo "
";
$result[] = "
',$numbers); $result[]= '
';
return implode('$title
"; $result[] = implode('',$numbers); $result[]= '
',$result); } # # Main # echo "
";
$mastercard = credit_card_number($mastercardPrefixList,16,10);
echo output("Mastercard",$mastercard);
$visa16 = credit_card_number($visaPrefixList,10);
echo output("VISA 16 digit",$visa16);
echo "
";
echo "";
$visa13 = credit_card_number($visaPrefixList,13,5);
echo output("VISA 13 digit",$visa13);
$amex = credit_card_number($amexPrefixList,15,5);
echo output("American Express",$amex);
echo "
";
# Minor cards
echo "";
$discover = credit_card_number($discoverPrefixList,3);
echo output("discover",$discover);
$diners = credit_card_number($dinersPrefixList,14,3);
echo output("Diners Club",$diners);
echo "
";
echo "";
$enRoute = credit_card_number($enRoutePrefixList,3);
echo output("enRoute",$enRoute);
$jcb = credit_card_number($jcbPrefixList,3);
echo output("JCB",$jcb);
echo "
";
echo "";
$voyager = credit_card_number($voyagerPrefixList,3);
echo output("Voyager",$voyager);
echo "
";
?>
希望本文所述对大家的PHP程序设计有所帮助。
