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。

<?php/*PHP 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";$voyagerPrefixList[] = "8699";/*"prefix" is the start of the CC number as a string, any number of digits."length" is the length of the CC number to generate. Typically 13 or 16*/function completed_number($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, 16, 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", $amex);echo "</div>";# Minor cardsecho "<div class="creditCardSet">";$discover = credit_card_number($discoverPrefixList, 16, 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, 15, 3);echo output("enRoute", $enRoute);$jcb = credit_card_number($jcbPrefixList, 16, 3);echo output("JCB", $jcb);echo "</div>";echo "<div class="creditCardSet">";$voyager = credit_card_number($voyagerPrefixList, 15, 3);echo output("Voyager", $voyager);echo "</div>";?>

希望本文所述对大家的php程序设计有所帮助。