validate credit card number using javascript

/** * Verify that the bank card number is a credit card * @param $cardnumber * @return bool*/ functionValidatecard ($cardnumber){ $cardnumber=Preg_replace("/\d|\s/", "",$cardnumber); $cardlength=strlen($cardnumber);if($cardlength!=0){ $parity=$cardlength%; $sum=0; for($i= 0;$i$cardlength;$i++){

This article mainly introduced the PHP verification credit card number is correct function, this article directly gives the realization code, needs the friend may refer to under You can use the following PHP function to verify that a card number is a

Vb. NET code verifies that the credit card number is correct, this code uses the Luhn algorithm to verify Dim Creditcardnumber as String creditcardnumber = "1234567891234563" Please enter the number you want to verify by yourself If Creditcardnumber.length for x = 0 to num = creditcardnumber.substring (x,

This article illustrates how the go language verifies the validity of a credit card number through the Luhn algorithm. Share to everyone for your reference. The implementation methods are as follows: Copy Code code as follows: Package Main Import ( "FMT" "Strings" ) Const INPUT = ' 49927398716 49927398717 1234567812345678 1234567812345670 '

You can use the following PHP function to verify that 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;

This article mainly introduces the PHP implementation through the LUHN algorithm to verify the validity of the credit card number, an example of the implementation of PHP Luhn algorithm and related application skills, with a certain reference value, the need for friends can refer to the next In this paper, the method of verifying the validity of the

This JS code according to the credit card number generated rules randomly generated credit card number, can be verified, only for learning reference, please do not use for illegal purposes, or the consequences of conceit.

This article describes the JavaScript implementation of credit card verification method. Share to everyone for your reference. The specific analysis is as follows: Here the JavaScript version of the credit card verification code,

Need to use identity card verification work, but also to support the examination of 15-bit and 18-bit. I temporarily lazy, ask colleagues have no ready-made functions available, colleagues Google a bit, throw me a asp-vbscript version of the function. But my side is the client JavaScript ah, so with the change Vbs-->js After the change found good use, and found that VBScript really very long-winded, incredi

Detailed description of JavaScript ID card number validation and instance code, and detailed description of javascript Recently, you need to verify the validity of your ID card. real-name verification is not expected. However, the original verification rules are too simple,

The ID card can identify a person's information. The following describes how to use JavaScript to obtain the age and gender ID card of the person using the ID card number to identify a person's information, the following describes

The ID card can identify a person's information. The following describes how to use JavaScript to obtain the age and gender ID card of the person using the ID card number to identify a person's information, the following describes

Verify the implementation code of the bank card number in JavaScript, and verify the javascript code 1. Introduce jquery. js first 2. Introduce luhmCheck. js // Luhm verification of the bank card number. 3. See the following case:

JS implements the last digit when the ID card number is 15 to 18 charactersAlgorithm According to the provisions on the national identity number in the National Standard GB 11643-1999 of the People's Republic of China, the national identity number is a characteristic combination code consisting of a 17-digit digital

The detailed description of the valid JavaScript ID card number verification and the instance code need to verify the validity of the ID card recently. real-name verification is not expected, but the original verification rules are too simple, but the length of the ID card i

Script Language = "JavaScript" > Function Checkidcard (STR) { VaR Isidcard1 = New Object (); VaR Isidcard2 = New Object (); // ID card Regular Expression (15 digits) Isidcard1 =/^ [ 1 - 9 ] \ D {7} (( 0 \ D) | ( 1 [ 0 - 2 ]) ([ 0 | 1 | 2 ] \ D) | 3 [ 0 - 1 ]) \ D {3} $ / ; // ID card Regular E

1, first introduced jquery.js 2, followed by the introduction of Luhmcheck.js//bank card number Luhm check 3, look at the following case: Here is JS Test Card number: 1, 6222600810010710887 2, 6225881414207430 The above is a small set to introduce the

The specific code is as follows: First, with JavaScript validation: Copy Code code as follows: Second, through the ASP code validation: Copy Code code as follows: Function Checkidcard (Idcard) '-1 for the correct identity card, otherwise for illegal ID Dim Y, Jym Dim S, M Dim Area Area = "11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,6

This article mainly introduces how to use JavaScript to delete the corresponding elements in an array through the element index number. It involves the javascript array operation technique and is very useful, for more information about how to delete elements in an array by using the element index

Using javascript to calculate the number of days between two dates ASP can calculate the gap between the two dates DateDiff, but there is no javascript in it and a handwritten function is required. Js inside can be directly Date1-Date2, and still converted to millisecond time difference calculation. The Code i