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1 /**2 * Verify that the bank card number is a credit card3 * @param $cardnumber4 * @return BOOL5 */6 functionValidatecard ($cardnumber){7 $cardnumber=Preg_replace("/\d|\s/", "",$cardnumber);8 $cardlength=strlen($cardnumber);if($cardlength? =n){9 $parity=$cardlength%;Ten $sum=0; One for($i= 0;$i$cardlength;$i++){ A $digit=$cardnum

One: First, introduce the benefits of registering for the US area Apple ID: 1. There are a lot of things in the App store in the U.S. area: songs, videos, podcast are not available in the Chinese area. 2. Almost all applications will appear in the American App Store, and some applications in China are not. 3. Many applications that earn points for free itunes or Amazon cash cards by doing tasks require you to have an Apple ID account in the U.S. region. This article details how to use itunes wit

Transmission Door : Codeforces 893D The main effect of the topic : There is a credit card with an initial amount of 0. Every day there are turnover a[i], every morning you can go to the bank to replenish any amount (positive) money, each night need to do the following: 1. Money deposited into a credit card at the ti

1, Bill day before the bill, the bill is 0, the corresponding card debt rate is 02, the calculation method of debt ratio related to the collationhttp://bbs.51credit.com/thread-1573788-1-1.html Debt rate high card do not come down friends have help, I am ready to borrow 300,000, get 50% of the debt rate. The rest of the bank is to be run at the beginning of next month.Information about

This article mainly introduces the implementation of PHP to verify all types of credit card class, the case analysis of the credit card class implementation principles and related use skills, with a certain reference value, the need for friends can refer to the next This example describes the PHP implementation used t

You can use the following PHP functions to verify whether a card number is a credit card: function Validatecard ($cardnumber) { $cardnumber = preg_replace ("/\d|\s/", "", $cardnumber); # Strip any non-digits $cardlength = strlen ($cardnumber); if ($cardlength! = 0) { $parity = $cardlength% 2; $sum = 0; for ($i = 0; $i 

Micro-credit card is what:When the micro-mail is updated to 5.4, the user can purchase/pay in support of the card-paying merchant. The Merchant uses the POS machine with the sweep code function simply scans the micro-letter user's (swipe card page) two-dimensional code/The barcode, then may complete the payment functio