Zend Framework 2 : Check if placeholder is set (or not empty)

Question

Like the question for Zend Framework 1.x, what is the proper way to test if a placeholder value is set (or if it contains content)?

I know I could do

$content = $this->placeholder('something')->getValue();
if (!empty($content)) {
   echo $content;
}

but I'd rather check this directly. Something like

if (.. test $this->placeholder('something') has content ..) {
   echo $this->placeholder('something');
}

Answer 1

What about this three liner:

if (null != ($content = $this->placeholder('something')->getValue())) {
    echo $content;
}

It's not exactly equal to empty, but it's coming close. It'll display "0" where as empty() would not. See this codepad