coatesap/credit-card-validator

A simple PHP class for validating credit/debit card details

Credit Card Validator

A simple PHP class for preparing and validating credit/debit card details. Typically this takes place before they are passed to a payment gateway for processing., _(*1)

Example Usage

require '../vendor/autoload.php';

$cardDetails = array(
    'number' =>'4929000000006',
    'expiryYear' => 2013,
    'expiryMonth' => 5,
    'code' => '123'
);

$card = new Coatesap\Payment\Card();
$card->populate($cardDetails);

if (!$card->isValid($message)) {
    // show error message (set by reference)
    echo 'There is a problem with your card details: ' . $message;
} else {
    // get the prepped, validated card data as an array
    $cardData = $card->toArray();
    // send $cardData to payment gateway
}

Installation

The credit card class can be installed via Composer. To install, simply add it to your composer.json file:, _(*2)

{
    "require": {
        "coatesap/credit-card-validator": "~2.0"
    }
}

Data preparation

This class does some simple preparation of your card data. This includes removing non-numeric characters, including spaces, from: - The card number - The CVC/CV2 value - The card expiry date, _(*3)

Validation Checks

This class also checks: - That the card hasn't expired - A valid CVC/CV2 security code has been supplied - The card number passes the Luhn check, _(*4)