maxmind/ccfd-api-php — pull request #1 by jeremy-tangocard (2013-06-04 18:00:43+00:00)
Title: Unnecessary use of regular expression.

The use of `preg_match()` (formerly `ereg()`) in `CreditCardFraudDetection->filter_field()` is unnecessary to check the existence of a single character and more computationally expensive than using the native `strpos()` function.