Add html to temate without tpl file?

[Sim]

So with my item System I want different item types to show different pages based on the item type, but the HTML is going to be from an outside class and not the TPL. So I'm having an issue with adding html to the template:

$this->html = $type->getHTML();

 

$this->html .= $type->getHTML(); adds the html twice.

TPL

public $placeholder = "{myHTML}";

PHP:

$this->html .= $this->page->buildElement('placeholder', array(
        "myHTML" => $type->getHTML()
      ));    

 

SHOWS MY HTML CODE. DONT RENDER IT

 

 

TPL:

public $placeholder = " ";

HTML:

$this->html = $type->getHTML();
  $this->html .= $this->page->buildElement('placeholder'); 

RESULT: (UGLY PHP CODE) But does what Its supposed to.