So you found this post because you just updated or installed PHPUnit, you're running PHP 5.6, and you get this error: "This version of PHPUnit is supported on PHP 7.0 and PHP 7.1. You are using PHP 5.6.30 (/usr/local/Cellar/php56/5.6.30_6/bin/php)." Maybe, like me, you're cranky about virtualization and you're using a PHP switcher to switch between PHP 5.6 and 7.1. The solution? brew install phpunit@5.7 Then you can run: phpunitat57 mytest…
Read more about Install PHPUnit for PHP 5.6 and PHP 7.1 on Homebrew
