HTTP server Formula was removed
Last version was
httpd22 requires the following formulae to be installed:
openssl 1.0.2n SSL/TLS cryptography library
pcre 8.42 Perl compatible regular expressions library
zlib 1.2.11 General-purpose lossless data-compression library

Recent formula history

Mike McQuaid Migrate tap to homebrew/core.
ilovezfs httpd22 2.2.34
capripot httpd22 2.2.32
FX Coudert httpd22: import homebrew/dupes into core.
Baptiste Fontaine httpd22: audit fixes

Formula code at GitHub