https://medium.com/zenchef-tech-and-product/how-to-upgrade-your-version-of-php-to-7-0-on-macos-sierra-e1bfdea55a63

https://coolestguidesontheplanet.com/upgrade-php-on-osx
https://jasonmccreary.me/articles/upgrade-php-mac-os-x
https://php-osx.liip.ch

curl -s https://php-osx.liip.ch/install.sh | bash -s 7.3