public function layout()
    {
        $exists = (boolean) isset($this->data['layout']);

        return $exists ? $this->data['layout'] : null;
    }
public function layout()
    {
        $exists = (boolean) isset($this->data['layout']);

        return $exists ? $this->data['layout'] : null;
    }
public function layout ( ) { $ exists = ( boolean ) isset ( $ this -> data [ 'layout' ] ) ; return $ exists ? $ this -> data [ 'layout' ] : null ; }
Returns the layout of the page.

@return string|null
Returns the layout of the page .