Developer
# 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');
```
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: