This article describes how to verify the validity of credit card numbers through the Luhn algorithm in PHP. The example shows how to implement the Luhn algorithm and related application skills in php, which has some reference value, for more information about how to use the Luhn algorithm to verify the validity of credit card
This article describes how to verify the validity of credit card numbers through the Luhn algorithm in PHP. The example shows how to implement the Luhn algorithm and related application skills in php, which has some reference value, for more information about how to use the Luhn algorithm to verify the validity of credit card
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
Speaking of credit card "on behalf of the platform", manager: Four three-830977 a lot of users also because the overdraft amount is not up to this, through and on behalf of the Platform to confirm the agreement, pay part of the service fee to resolve this issue. But for the negative impact of this kind of repayment, ordinary card users often do not know what they
Is it true that you still have credit cards?
Also chant app is a "still chant" credit card low interest in the app, in the north, upper, Broad, deep line of the white collar of the city quietly popular. By virtue of the minimum repayment of bank credit card to save a lot
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
1, program execution code:
#Author by Andy #_ *_ coding:utf-8 _*_ import os,sys,time base_dir=os.path.dirname (Os.path.dirname (__ file__)) Sys.path.append (Base_dir) str= "Welcome to the bank Credit card self-service system!" \ n "For I in Str:sys.stdout.write (i) Sys.stdout.flush () Time.sleep (0.3) while True:print (" 1), administrative personnel portal. ") Time.sleep (0.3) print (" 2), User login
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
This article mainly introduces the use of Python3 to write a simple credit card management program code, very good, with reference value, need to refer to a friend
1. Program Execution Code:
#Author by Andy#_*_ coding:utf-8 _*_import os,sys,timebase_dir=os.path.dirname (Os.path.dirname (Os.path.abspath (__ file__)) Sys.path.append (Base_dir) str= "Welcome to the bank
Also, the credit card operation process Introduction
1, open the software, on the home page, click the Immediate borrowing button,
2, click I know, immediately fill out the button,
3. Face recognition, fill in information, submit application,
4, after the audit, the customer initiated the loan, the loan, the loan to my credit
Title Requirements:Enter the code:#include Operation Result: Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. OJ Brush Problem---credit card number check (Luhn algorithm)
#!/usr/bin/env python#--*--coding:utf-8--*--function Body of #safe_floatdefsafe_float (obj):'safe version of float ()' Try: retval=float (obj)except(Valueerror,typeerror), Diag:retval=Str (DIAG)returnretvaldefMain ():'handles all the data processing'Log= Open ('Cardlog.txt','W') #记录logTry: Ccfile= Open ('Carddata.txt','R') exceptIoerror,e:log.write ('no Txns this month\n') Log.close ()returnTxns=ccfile.readlines () ccfile.close () Total= 0.00Log.write ('Account log:\n') forEachtxninchT
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