![]() These subroutines will also work if you provide the arguments as numbers instead of strings, e.g. To verify whether a card is real, or whether it's been stolen, or to actually process charges, you need a Merchant account. This module does not tell you whether the number is on an actual card, only whether it might conceivably be on a real card. With a 16-digit card, you provide the first 15 digits the subroutine returns the sixteenth. The generate_last_digit() subroutine computes and returns the last digit of the card given the preceding digits. Six digits are also required for receipt_cardtype(). #Credit card validator free full#With six digits (the full "BIN" or "IIN"), all cards are recognized. With four digits, almost all cards except some Switch cards are recognized. With two digits, Visa, MasterCard, Discover and Amex are recognized (versions before 0.36 needed four digits to recognize all Discover cards). Only the first 2-6 digits and the length are significant whitespace and dashes are removed. Versions before 0.31 may also have returned "Diner's Club/Carte Blanche" (these cards are now recognized as "Discover card").Ĭardtype() will accept a partial card masked with "x", "X", ".", "*" or "_". "Not a credit card" is returned on obviously invalid data values. The list of possible return values is more comprehensive than it used to be, but additions are still most welcome. ![]() The cardtype() subroutine returns a string containing the type of card. The validate_card() subroutine returns 1 if the card number provided passes the checksum test, and 0 otherwise. These subroutines tell you whether a credit card number is self-consistent - whether the last digit of the number is a valid checksum for the preceding digits. ![]() # old interface, deprecated but still supported for backwards compatibilityīusiness::CreditCard is available at a CPAN site near you. Use Business::CreditCard qw( 0.36 :NEW ) # new-style, supported since 0.36 released Jun 14 2016 Business::CreditCard - Validate/generate credit card checksums/names SYNOPSIS # ![]()
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