I\'m upgrading from php5.5 to php5.6 on OSX Mavericks using homebrew. I run
brew install php56
Everything runs and completes fine but when
dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.53.dylib
It sounds like an issue with icu4c. So try:
icu4c
brew uninstall icu4c && brew install icu4c brew unlink icu4c && brew link icu4c --force
In case of further issues, investigate them by brew doctor.
brew doctor