tickertape

Fork of Symfony's Event Dispatcher component compatible with PHP 5.2+.

Motivation

Symfony's Event Dispatcher component is a fantastic library, but it's only compatible with PHP 5.3+. While 97% of PHP servers run PHP 5.2 or higher, 32% of all servers are still running PHP 5.2 or lower (source). It would be a shame to exempt this library from nearly half of the world's servers just because of a few version incompatibilities.

Once PHP 5.3+ adoption levels near closer to 100%, this library will be retired.

Differences from Symfony's Event Dispatcher component

The primary difference is naming conventions of the Symfony classes. Instead of the \Symfony\Component\EventDispatcher namespace (and sub-namespaces), prefix the Symfony class names with ehough_tickertape and follow the PEAR naming convention

A few examples of class naming conversions:

\Symfony\Component\EventDispatcher\EventDispatcher   ----->    ehough_tickertape_EventDispatcher
\Symfony\Component\EventDispatcher\Event             ----->    ehough_tickertape_Event

Usage

$dispatcher = new ehough_tickertape_EventDispatcher();  //implements ehough_tickertape_EventDispatcherInterface

$dispatcher->addListener('event_name', $callback);

$dispatcher->dispatch('event_name');

Releases and Versioning

Releases are synchronized with the upstream Symfony repository. e.g. ehough/tickertape v2.3.1 has merged the code from symfony/EventDispatcher v2.3.1.