How to upgrade phpunit to new version?

Question

Current, I installed phpunit. i use OS win 10. I think i installed new version from https://phpunit.de/ (current version 5.6, beta 5.7). But when check version with command

Answer 1

It looks like you have PHPUnit 3.7 installed globally and on your PATH. Either replace your global phpunit with the PHAR you downloaded or explicitly execute the latter.