How to Randomly Generate Credit Card Numbers with PHP

How to Randomly Generate Credit Card Numbers with PHP_PHP Tutorial

WBOY

Release： 2016-07-13 10:00:32

Original

1007 people have browsed it

How to Randomly Generate Credit Card Numbers in PHP

This article mainly introduces the method of randomly generating credit card numbers in PHP, involving the techniques of generating card numbers in PHP according to the rules of credit card numbers, and has certain reference For reference value, friends in need can refer to it

The example in this article describes the method of randomly generating credit card numbers in PHP. Share it with everyone for your reference. The specific analysis is as follows:

This PHP code randomly generates credit card numbers according to the credit card number generation rules. It can be verified and is for learning reference only. Please do not use it for illegal purposes, otherwise you will be responsible for the consequences.

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

PHP credit card number generator

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[] = "

$title

$result[] = implode('
', $numbers);

$result[]= '

return implode('
', $result);

}

# Main

echo "

$mastercard = credit_card_number($mastercardPrefixList, 16, 10);

echo output("Mastercard", $mastercard);

$visa16 = credit_card_number($visaPrefixList, 16, 10);

echo output("VISA 16 digit", $visa16);

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, 16, 3);

echo output("Discover", $discover);

$diners = credit_card_number($dinersPrefixList, 14, 3);

echo output("Diners Club", $diners);

echo "

$enRoute = credit_card_number($enRoutePrefixList, 15, 3);

echo output("enRoute", $enRoute);

$jcb = credit_card_number($jcbPrefixList, 16, 3);

echo output("JCB", $jcb);

echo "

$voyager = credit_card_number($voyagerPrefixList, 15, 3);

echo output("Voyager", $voyager);

echo "

I hope this article will be helpful to everyone’s PHP programming design.