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As your site traffic grows it takes longer and longer to generate a dynamic page from sending multiple queries to a database. One possible solution to limit queries is to cache the result of each query that is needed, or to have a complete full page cache for your site.

One thing I've found as this site has grown in size is that an increasing number of database queries fail simply because the database server isn't capable of holding up to all the traffic and can only allow a finite number of connections at any one time. The solution that I decided to use to solve this problem was to either cache queries, or to cache pages - the method would depend on what I could find available as their are basically two options here - use a third party caching solution, or to develop one myself. Lately I've been quite busy and haven't had the time to spend creating a way of caching so I decided the best option would be to see what was available first.

The first caching option I found was Cache_Lite which is part of the popular PEAR framework. One problem with this part of the framework is that it is no longer being actively maintained and is in need of someone to take it over. So any problems that are found with this are likely to go unfixed. Installing it is dead easy, especially if you already have PEAR installed - all you have to type into the BASH prompt in *nix is:

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