Snappy Extension for PHP Formula was removed
Last version was
php53-snappy requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder
snappy 1.1.7_1 Compression/decompression library aiming for high speed

Recent formula history

Mike McQuaid Deprecate tap.
Andreas Braun Add description for snappy formula
Andy Blyler php53-snappy: convert from sha1 to sha256
Andy Blyler fix style issues
Jack Nagel Move abstract classes out of Formula directory

Formula code at GitHub