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[](https://packagist.org/packages/phpunit/php-code-coverage)
[](https://travis-ci.org/sebastianbergmann/php-code-coverage)
# PHP_CodeCoverage
**PHP_CodeCoverage** is a library that provides collection, processing, and rendering functionality for PHP code coverage information.
## Requirements
PHP 5.6 is required but using the latest version of PHP is highly recommended.
### PHP 5
[Xdebug](http://xdebug.org/) is the only source of raw code coverage data supported for PHP 5. Version 2.2.1 of Xdebug is required but using the latest version is highly recommended.
### PHP 7
Version 2.4.0 (or later) of [Xdebug](http://xdebug.org/) as well as [phpdbg](http://phpdbg.com/docs) are supported sources of raw code coverage data for PHP 7.
### HHVM
A version of HHVM that implements the Xdebug API for code coverage (`xdebug_*_code_coverage()`) is required.
## 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
## Using the PHP_CodeCoverage API
```php
<?php
$coverage = new \SebastianBergmann\CodeCoverage\CodeCoverage;
$coverage->start('<name of test>');
// ...
$coverage->stop();
$writer = new \SebastianBergmann\CodeCoverage\Report\Clover;
$writer->process($coverage, '/tmp/clover.xml');
$writer = new \SebastianBergmann\CodeCoverage\Report\Html\Facade;
$writer->process($coverage, '/tmp/code-coverage-report');
```
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