# phpunit/php-code-coverage [](https://packagist.org/packages/phpunit/php-code-coverage) [](https://github.com/sebastianbergmann/php-code-coverage/actions) [](https://shepherd.dev/github/sebastianbergmann/php-code-coverage) Provides collection, processing, and rendering functionality for PHP code coverage information. ## Installation You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/): ``` composer require phpunit/php-code-coverage ``` If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency: ``` composer require --dev phpunit/php-code-coverage ``` ## Usage ```php <?php declare(strict_types=1); use SebastianBergmann\CodeCoverage\Filter; use SebastianBergmann\CodeCoverage\Driver\Selector; use SebastianBergmann\CodeCoverage\CodeCoverage; use SebastianBergmann\CodeCoverage\Report\Html\Facade as HtmlReport; $filter = new Filter; $filter->includeDirectory('/path/to/directory'); $coverage = new CodeCoverage( (new Selector)->forLineCoverage($filter), $filter ); $coverage->start('<name of test>'); // ... $coverage->stop(); (new HtmlReport)->process($coverage, '/tmp/code-coverage-report'); ```