homebrew/phpがdeprecatedになってしまった件 ref: https://qiita.com/M_Ishikawa/items/e8e6081ca2897bb266eb

file0.txt

% brew link php71
Warning: [email protected] is keg-only and must be linked with --force
Note that doing so can interfere with building software.

If you need to have this software first in your PATH instead consider running:
  echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.zshrc
  echo 'export PATH="/usr/local/opt/[email protected]/sbin:$PATH"' >> ~/.zshrc

% php -v
PHP 7.0.29 (cli) (built: Apr 12 2018 03:13:39) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
    with Zend OPcache v7.0.29, Copyright (c) 1999-2017, by Zend Technologies

% brew unlink php70
Unlinking /usr/local/Cellar/[email protected]/7.0.29_1... 25 symlinks removed

% brew link php71
Warning: [email protected] is keg-only and must be linked with --force
Note that doing so can interfere with building software.

If you need to have this software first in your PATH instead consider running:
  echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.zshrc
  echo 'export PATH="/usr/local/opt/[email protected]/sbin:$PATH"' >> ~/.zshrc

% php -v
PHP 5.6.30 (cli) (built: Oct 29 2017 20:30:32)
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies

% brew link --force php71
Linking /usr/local/Cellar/[email protected]/7.1.14_25... 17 symlinks created

If you need to have this software first in your PATH instead consider running:
  echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.zshrc
  echo 'export PATH="/usr/local/opt/[email protected]/sbin:$PATH"' >> ~/.zshrc

% php -v
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-intl/intl.so' - dlopen(/usr/local/opt/php71-intl/intl.so, 9): Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.60.dylib
  Referenced from: /usr/local/opt/php71-intl/intl.so
  Reason: image not found in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-intl/intl.so' - dlopen(/usr/local/opt/php71-intl/intl.so, 9): Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.60.dylib
  Referenced from: /usr/local/opt/php71-intl/intl.so
  Reason: image not found in Unknown on line 0
PHP 7.1.14 (cli) (built: Feb  2 2018 08:41:46) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies

file1.txt

% brew install php71 php71-mcrypt php71-intl php71-memcached
Error: No available formula with the name "php71-mcrypt"
==> Searching for a previously deleted formula (in the last month)...
Warning: homebrew/core is shallow clone. To get complete history run:
  git -C "$(brew --repo homebrew/core)" fetch --unshallow

Error: No previously deleted formula found.
==> Searching for similarly named formulae...
==> Searching local taps...
Error: No similarly named formulae found.
==> Searching taps...
==> Searching taps on GitHub...
Error: No formulae found in taps.
brew install php71 php71-mcrypt php71-intl php71-memcached  2.29s user 0.94s system 62% cpu 5.131 total

file2.txt

% brew search php71
==> Searching local taps...
==> Searching taps on GitHub...
==> Searching blacklisted, migrated and deleted formulae...
It was migrated from homebrew/php to homebrew/core.

file3.txt

% brew install [email protected]
Updating Homebrew...
==> Downloading https://homebrew.bintray.com/bottles/[email protected]_1.sierra.bottle.tar.gz
Already downloaded: /Users/masayuki.ishikawa/Library/Caches/Homebrew/[email protected]_1.sierra.bottle.tar.gz
==> Pouring [email protected]_1.sierra.bottle.tar.gz
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set php_ini /usr/local/etc/php/7.1/php.ini system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set php_dir /usr/local/share/[email protected] system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set doc_dir /usr/local/share/[email protected]/doc system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set ext_dir /usr/local/lib/php/pecl/20160303 system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set bin_dir /usr/local/opt/[email protected]/bin system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set data_dir /usr/local/share/[email protected]/data system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set cfg_dir /usr/local/share/[email protected]/cfg system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set www_dir /usr/local/share/[email protected]/htdocs system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set man_dir /usr/local/share/man system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set test_dir /usr/local/share/[email protected]/test system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear config-set php_bin /usr/local/opt/[email protected]/bin/php system
==> /usr/local/Cellar/[email protected]/7.1.16_1/bin/pear update-channels
==> Caveats
To enable PHP in Apache add the following to httpd.conf and restart Apache:
    LoadModule php7_module /usr/local/opt/[email protected]/lib/httpd/modules/libphp7.so

    <FilesMatch \.php$>
        SetHandler application/x-httpd-php
    </FilesMatch>

Finally, check DirectoryIndex includes index.php
    DirectoryIndex index.php index.html

The php.ini and php-fpm.ini file can be found in:
    /usr/local/etc/php/7.1/

This formula is keg-only, which means it was not symlinked into /usr/local,
because this is an alternate version of another formula.

If you need to have this software first in your PATH run:
  echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.zshrc
  echo 'export PATH="/usr/local/opt/[email protected]/sbin:$PATH"' >> ~/.zshrc

For compilers to find this software you may need to set:
    LDFLAGS:  -L/usr/local/opt/[email protected]/lib
    CPPFLAGS: -I/usr/local/opt/[email protected]/include


To have launchd start [email protected] now and restart at login:
  brew services start [email protected]
Or, if you don't want/need a background service you can just run:
  php-fpm
==> Summary
🍺  /usr/local/Cellar/[email protected]/7.1.16_1: 514 files, 67MB
brew install [email protected]  3.84s user 4.29s system 63% cpu 12.835 total

% php -v
PHP 5.6.30 (cli) (built: Oct 29 2017 20:30:32)
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies

file4.txt

% export PATH="/usr/local/opt/[email protected]/bin:$PATH"

% export PATH="/usr/local/opt/[email protected]/sbin:$PATH"

% php -v
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-igbinary/igbinary.so' - dlopen(/usr/local/opt/php71-igbinary/igbinary.so, 9): image not found in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-igbinary/igbinary.so' - dlopen(/usr/local/opt/php71-igbinary/igbinary.so, 9): image not found in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-intl/intl.so' - dlopen(/usr/local/opt/php71-intl/intl.so, 9): image not found in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-intl/intl.so' - dlopen(/usr/local/opt/php71-intl/intl.so, 9): image not found in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-mcrypt/mcrypt.so' - dlopen(/usr/local/opt/php71-mcrypt/mcrypt.so, 9): image not found in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-mcrypt/mcrypt.so' - dlopen(/usr/local/opt/php71-mcrypt/mcrypt.so, 9): image not found in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-memcached/memcached.so' - dlopen(/usr/local/opt/php71-memcached/memcached.so, 9): image not found in Unknown on line 0

Warning: PHP Startup: Unable to load dynamic library '/usr/local/opt/php71-memcached/memcached.so' - dlopen(/usr/local/opt/php71-memcached/memcached.so, 9): image not found in Unknown on line 0
PHP 7.1.16 (cli) (built: Apr 12 2018 03:25:50) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.1.16, Copyright (c) 1999-2018, by Zend Technologies

file5.txt

% ll /usr/local/etc/php/7.1/conf.d/
total 48
drwxr-xr-x   7 masayuki.ishikawa  admin                238B  4 25 16:07 ./
drwxr-xr-x  11 masayuki.ishikawa  admin                374B  4 25 15:16 ../
-rw-r--r--   1 masayuki.ishikawa  admin                300B  2  5 11:04 ext-igbinary.ini
-rw-r--r--   1 masayuki.ishikawa  admin                303B  2 28 16:40 ext-intl.ini
-rw-r--r--   1 masayuki.ishikawa  admin                 59B  2 28 16:40 ext-mcrypt.ini
-rw-r--r--   1 masayuki.ishikawa  admin                4.0K  2  5 11:04 ext-memcached.ini
-rw-r--r--   1 masayuki.ishikawa  admin                 76B  4 25 16:07 ext-opcache.ini

file6.txt

% rm -rf /usr/local/etc/php/7.1/conf.d/*
zsh: sure you want to delete all the files in /usr/local/etc/php/7.1/conf.d [yn]? y

% php -v
PHP 7.1.16 (cli) (built: Apr 12 2018 03:25:50) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies