phpunitHow to upgrade PHPUnit?

Upgrading PHPUnit is a simple process. To upgrade, you need to run the following command in your terminal:

composer update phpunit/phpunit

This will update the version of PHPUnit to the latest version available.

The command will output something like this:

Updating dependencies (including require-dev)
  - Updating phpunit/phpunit (7.5.20 => 8.5.8)

The command:

1. composer update: updates all dependencies in the composer.json file.
2. phpunit/phpunit: specifies the package to update.
3. 7.5.20 => 8.5.8: shows the version of PHPUnit that is being updated.

For more information, please refer to the PHPUnit documentation.

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