Choose suitable version for install:
https://phpunit.de/index.html
For instance, if you have php version 7.0, go to:
https://phpunit.de/getting-started/phpunit-6.html
and install phpunit into your projects root folder:
composer require --dev phpunit/phpunit ^6
Installing this way (per project) to run phpunit you have to write into terminal full path to executable:
./vendor/bin/phpunit --version
Your composer.json should look similar to this:
{
"autoload": {
"classmap": [
"src/"
]
},
"require-dev": {
"phpunit/phpunit": "^6"
}
}
!! Every time when you change composer.json you have to run !!
composer update
in terminal. Otherwise phpunit won’t recognize new dependencies.
Then follow instructions here:
https://phpunit.de/getting-started/phpunit-6.html