PHP was not working for me as I was encountering this libpng issue, so I reinstalled a new version with Homebrew.
However, I\'m getting a similar error with
I am sharing this as I had the same issue when using PHP5.4. Originally, I had PHP5.6 and it was working fine. Then I downgraded to php5.4 as my app only supports PHP5.4.
Then this error came up. I noticed that I have libjpeg.9.dylib and PHP5.4 is looking for libjpeg.8.dylib.
Doing the following sorted the issue:
brew uninstall php54
brew install --build-from-source php54