PHPTAL and nested templates. Possible?

I've been playing around with PHPTAL for the last couple of days. Overall, I really like it. It was much easier to hit than most of the others I have studied. However, I have one specific problem.

Here's the problem. I am trying to nest two templates. Let's say InnerClass has this pattern:

<div>Hello World!</div>

      

        
        
        
      

    

OuterClass has the following template:

<div tal:content="myVar">This text should be replaced with the HTML above.</div>

      

        
        
        
      

    

InnerClass also has a method called render () which essentially calls the executeplate () method and returns the content. So I am doing this in an outer class:

$template->myVar = $innerClassObject->render();

      

        
        
        
      

    

Then I display the contents of the OuterClass. The problem is that the rendered HTML of the inner class disappears and I see ">"; and "<" instead of actual tags. It seems that myVar is fully escaped prior to displaying its contents.

Since this approach doesn't work, what is the best way to nest PHPTAL templates? I guess it is possible and it is just a lack of knowledge at my end, so any input is appreciated.