PHP long polling, without excessive database access

Question

I\'ve always enjoyed the idea of long polling; on my development server I\'ve played with various notification / new post systems, each using javascript to hold a connection

Answer 1

Whenever you Insert or update your database create a cache for that field of the database. You can use any simple PHP based cache (http://hycus.com/2011/03/31/hcache-a-cache-system-for-php/).

Then you can poll that cache continuously using JQUERY.