PHP随机生成信用卡卡号的方法,php信用卡卡号
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 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[] = "<div class='creditCardNumbers'>"; $result[] = "<h3 id="title">$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 cards echo "<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。

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。


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