php loading problems

I am using php and mysql to grab and display 开发者_如何学编程details depending on the user request. The problem that I am having is while the results are loading none of the other files are accessible to anyone. For an example when someone is using results.php none of the other users are able to access listall.php until the results.php is loaded completely.

Can someone please tell me how to make possible that any user can access any part of the site.

---

My best guess is that you're using shared sessions, or a broken custom session handler, and the second request is blocking waiting for the first request to session_commit().