Extension for MaxMind DB file format Formula was removed
Last version was
php54-maxminddb requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder
libmaxminddb 1.3.2 C library for the MaxMind DB file format

Recent formula history

Mike McQuaid Deprecate tap.
Boris Klimenko php-maxminddb 1.2.0
Jan Viljanen maxminddb 1.1.0 for php53/54/55/56
Andy Blyler Add php5*-maxminddb

Formula code at GitHub