J3.x:Triggering content plugins in your extension
From Joomla! Documentation
A common example of using plugins is to run the content plugins on some text. This is useful if you want to support plugins that usually work on Content from a custom extension. For the content prepare trigger you can simply call:
$text = JHtml::_('content.prepare', $text);
For any other content triggers you must call:
$article = new stdClass; $article->text = $text; // add more to parameters if needed $params = new JObject; // Note JEventDispatcher succeeded the older JDispatcher from Joomla 1.5/2.5 however it does still work if you need to keep compatibility. JPluginHelper::importPlugin('content'); $dispatcher = JEventDispatcher::getInstance(); $dispatcher->trigger('onContentPrepare', array('some.context', &$article, &$params, 0));
You might want to look at core components (for example com_content) for an example. See the triggers page for the possible content plugin triggers.