The ZendMarkup library is very old (last update is 10 months ago!) so I wouldn't use such library. If you would like, I think I traced the error down.
On this line there is a reference to Zend_Markup_Root
while that should be ZendMarkup\Renderer\Markup\Html\Root
. Try to change that line and see what happens.
Another way is to replace the ZendMarkup library with another library which does work and is updated regularly. An example is Decoda. If you load mjohnson/decoda
in your composer.json, you can use Decoda in your Zend Framework 2 application:
<?php
use Decoda\Decoda;
$parser = new Decoda($bbcode);
$html = $parser->parse();
With tools like composer, there is no need to use solely Zend* components when there are better alternatives.