PHP extension for Google's V8 Javascript engine Formula was removed
Last version was
php70-v8js requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder
v8 Google's JavaScript engine

Recent formula history

ilovezfs php70: migrate to homebrew/core
Kévin Letord Update php-7{0-2}-v8js to 2.1.0
Andreas Braun php7{0-1}-v8js 1.4.1
Andreas Braun php7{0-1}-v8js 1.4.0
Andreas Braun php7{0,1}-v8js 1.3.6

Formula code at GitHub