public function render()
    {
        $renderedChildren = $this->renderChildren();
        $encoding = mb_detect_encoding($renderedChildren);

        return mb_strtoupper($renderedChildren, $encoding);
    }
public function render()
    {
        $renderedChildren = $this->renderChildren();
        $encoding = mb_detect_encoding($renderedChildren);

        return mb_strtoupper($renderedChildren, $encoding);
    }
public function render ( ) { $ renderedChildren = $ this -> renderChildren ( ) ; $ encoding = mb_detect_encoding ( $ renderedChildren ) ; return mb_strtoupper ( $ renderedChildren , $ encoding ) ; }
Converts the rendered children to uppercase.

@return string the uppercased rendered children, might be empty
Converts the rendered children to uppercase .