credit_card_fields

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Verify major credit card numbers, including: Visa, MasterCard, Diners Club, Carte Blanche, Discover and American Express.

IMPORTANT: It does not do REAL credit card validation; it only checks could inputted data be a credit card number.

VALID

4111-2222-3333-4444

3411 222222 33333

5111222233334444

INVALID

4111-2222-3333-444

3411-2222-3333-4444

Visa