The CardValidator component is used to verify that a given credit card number is formatted properly, and could be a valid card number. Validating a card before actually submitting a transaction for authorization can reduce the fees that may be associated with invalid or declined transactions.
Utilization of this class catches accidentally mistyped card numbers and allows buyers to re-input their number without having the transaction declined. It can also determine the type of credit card (Visa, MasterCard, Discover, etc) to easily determine if the customer is presenting a payment type which you do not support. The class can also parse swiped track data and perform these same checks on it.
There are three checks performed on the customer's credit card information:
|The card number is checked for validity using the Luhn mod-10 algorithm.|
|The type of the card (Visa, MasterCard, etc.) is computed from the card number.|
|The expiration date is checked against the current system date.|
The following is the full list of the properties of the module with short descriptions. Click on the links for further details.
|CardExpMonth||Expiration month of the credit card specified in CardNumber .|
|CardExpYear||Expiration year of the credit card specified in CardNumber .|
|CardNumber||Credit card number to be validated.|
|CardType||Indicates the results of the Luhn Digit Check algorithm.|
|CardTypeDescription||Human-readable description of the CardType .|
|DateCheckPassed||Indicates whether the card is expired or not.|
|DigitCheckPassed||Indicates the results of the Luhn Digit Check algorithm.|
|TrackData||Magnetic stripe data read off the credit card.|
|TrackType||Indicates the type of the specified TrackData .|
The following is the full list of the methods of the module with short descriptions. Click on the links for further details.
|Config||Sets or retrieves a configuration setting.|
|Reset||Clears all properties to their default values.|
|ValidateCard||Checks the card number and expiration date for validity.|
The following is the full list of the events fired by the module with short descriptions. Click on the links for further details.
|Error||Information about errors during data delivery.|
The following is a list of configuration settings for the module with short descriptions. Click on the links for further details.
|NameOnCard||The name encoded in the track data on the credit card.|