phpunitHow to install PHPUnit with Composer?

1. Install Composer on your system.
2. Create a composer.json file in the root of your project and add the following code:

{
    "require-dev": {
        "phpunit/phpunit": "^7.5"
    }
}

3. Run composer install in the root of your project.
4. Add the vendor/bin directory to your PATH environment variable.
5. Run phpunit --version to verify the installation.

Output example

PHPUnit 7.5.20 by Sebastian Bergmann and contributors.

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