Return Field Value

I'm trying to access a value nested deep within the view object. I can return top level items that aren't in a nested array for example :
<?=$view->db_table;?> returns views_view.
But I can't get the syntax right to access the value nested deep within this object. I'm trying to get the value for the deepest highlighted element below, can someone help me with the syntax? I've spent a crap-load of time trying different variations with no success.