Question

I am going to optimise a symfony (1.4) project by caching.
I don’t know what should I use? Is it better to cache whole pages, components, partial using symfony built-in cache or to cache sql results by APC? What are pros and cons for each one?

Answer 1

I would say: use both.

You can use Doctrine_Cache_Apc for all Doctrine queries, and use Symfony cache on complex actions/components.

If you have a CMS, just remember to invalidate the cache so the user will see his editing “live”. For example, on a save action in the CMS, you can use sfFileCache::removePattern to delete the cache files,then re-create cache files on-the-fly with sfWebBrowser::get .