dont initialize variable if isset returns false
===

i have a simple statment like this

	$data['title']	=	isset($domain['title']) ? $domain['title'] : '';

This is ok. The data array is then used in insert query using codeigniter active record. Now i wanted to ask is there a way if isset returns false then dont initialize $data['title'].
I know the alternative here it is

    if(isset($domain['title'])){
       $data['title'] = $domain['title'];
    }
i want to know how can we do the same IF with the upper instruction?