Exposing PHP 7 abstract syntax tree Formula was removed
Last versions were

Revision: 1

php72-ast requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder

Recent formula history

Mike McQuaid Deprecate tap.
Tyson Andre phan: 0.8.8, 0.9.6 (new formula), 0.10.0 php7x-ast: 0.1.5
Andreas Braun Bump revision for php72-ast
Romain Neutron php72-ast 0.1.4 (new formula)

Formula code at GitHub