A closure in PHP does not capture the enclosing scope automatically. Variables from outside are simply not there unless they are named in use, which is a deliberate…
CodeIgniter’s execution flow has a fixed set of points where it will call your code — before the system loads, after the controller is constructed, after the response…
A second WP_Query in a template is harmless right up to the point where you call the_post() on it. That method assigns the global $post and runs setup_postdata(),…