php根据信用卡卡号规则生成卡号

本文实例讲述了PHP随机生成信用卡卡号的方法。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。

 ?phpPHP credit card number generatorCopyright (C) 2006 Graham King graham@darkcoding.netThis program is free software; you can redistribute it and/ormodify it under the terms of the GNU General Public Licenseas published by the Free Software Foundation; either version 2of 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 ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with this program; if not, write to the Free SoftwareFoundation, 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 $voyagerPrefixList[] = 8699  prefix is the start of the CC number as a string, any number of digits. length is the length of the CC number to generate. Typically 13 or 16function completed_number($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[] = p >
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