I need to cache some application specific data using Symfony 2's caching system so that I can run cache:clear to clear it. All the cache relies under app/cache but how do I actually go about caching data?
http://symfony.com/doc/current/cookbook/index.html
The only topic I see is about HTML caching with Varnish.
If you are using Doctrine already just use those cache classes.
Add a service to config.yml:
services: cache: class: Doctrine\Common\Cache\ApcCache And use it in your controller:
if ($fooString = $this->get('cache')->fetch('foo')) { $foo = unserialize($fooString); } else { // do the work $this->get('cache')->save('foo', serialize($foo)); } 
save method takes a third lifetime parameter: doctrine-project.org/api/common/2.0/…Simple way use Doctrine cache providers. At first, register service(sample in config.yml):
services: memcached: class: Memcached calls: - [ addServer, ['localhost', 11211] ] memcached_cache: class: Doctrine\Common\Cache\MemcachedCache calls: - [ setMemcached, [@memcached] ] Then to use get service, for example in controler:
$cache = $this->get('memcached_cache'); to send in another service use calls:
calls: - [ setCacheProvider, [@memcached_cache] ] or arguments:
arguments: - @memcached_cache In the same way, you can use other interfaces of Doctrine Cache package. Doctrine Cache provides a very simple interface for which several out of the box implementations are provided:
If you do not already use Doctrine, you may require Common Library for Doctrine projects: php composer.phar require doctrine/common or require only Caching library offering an object-oriented API for many cache backends: php composer.phar require doctrine/cache
How to use Doctrine Caching you can read in Doctrine Common documentation on Doctrine Project web site
Symfony2 does not provide any component for application layer caching.
Like you were already told, you can use the Doctrine Common caching library http://docs.doctrine-project.org/projects/doctrine-common/en/latest/reference/caching.html
If you want something more advanced, you can also use one of the cache bundle provided by the community. For instance, the https://github.com/TheBigBrainsCompany/TbbcCacheBundle#cachebundle which provides tools for a good caching strategy.
There is no partial cache in Symfony2, the build-in cache is full HTTP only. You have to use a reverse proxy, and if you only want to cache a piece of code, you have to use ESI. It's maybe more work than with symfony 1 but performances worth it.
Anyway, nothing stop you to use a memcached and store some stuff in it, look at this Bundle i.e. If as your question state it, you only have data to store, that's perfect (and a memcache cache is much faster than a filesystem one).
