PHP libicui18n 링크 오류

php_libicui18n_link_error_fix.md

증상

$ php -v
# dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib
#   Referenced from: /usr/local/bin/php
#   Reason: image not found
# [1]    10512 abort      php -v

원인

$ ls -al /usr/local/opt | grep icu
# lrwxr-xr-x   1 appkr admin   20  2 14 14:04 icu4c -> ../Cellar/icu4c/63.1/
 
$ ls -al /usr/local/Cellar/icu4c/
# total 0
# drwxr-xr-x  12 appkr admin  384  3  6  2018 60.2/
# drwxr-xr-x  12 appkr admin  384  6  8  2018 61.1/
# drwxr-xr-x  12 appkr admin  384  6 25  2018 62.1/
# drwxr-xr-x  12 appkr staff  384  2 14 14:04 63.1/

해결

댓글 참조

$ brew reinstall icu4c

https://stackoverflow.com/a/54180353

$ php -v
# dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.64.dylib

Find libicui18n 64 from homebrew core https://github.com/Homebrew/homebrew-core/search?q=icu4c+64&unscoped_q=icu4c+64&type=Commits

and reinstall it

$ brew install https://raw.githubusercontent.com/Homebrew/homebrew-core/896d1018c7a4906f2c3fa1386aaf283497db60a2/Formula/icu4c.rb --force