# PHP Client for Piwik Analytics Tracking API The PHP Tracker Client provides all features of the [Piwik Javascript Tracker](http://developer.piwik.org/api-reference/tracking-javascript), such as Ecommerce Tracking, Custom Variable, Event tracking and more. ## Documentation and examples Check out our [Piwik-PHP-Tracker developer documentation](http://developer.piwik.org/api-reference/PHP-Piwik-Tracker) and [Piwik Tracking API guide](http://piwik.org/docs/tracking-api/). ## Requirements: * json extension (json_decode, json_encode) * CURL or STREAM extensions (to issue the HTTP request to Piwik) ## License Released under the [BSD License](http://www.opensource.org/licenses/bsd-license.php)