I want to know how to refresh a php page to update a status bar on the site on my website
This is a confusing statement. PHP will reload a page (from scratch). That is, unless you investigate AJAX to update part of a page (without having to reload).
Personally I would steer clear of the status-bar:
Most modern browsers disable scripting of the status-bar by default;
My browsers don't even show the status-bar;
Nobody looks at it anyway!
You could just update (via AJAX) an area within your page.
Adding jQuery effects is a different question. Well, it's not really a question at all - you'll need to do some studying/ research