php - How to cache in Symfony 2?

Question

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.

Answer 1

If you are using Doctrine already just use those cache classes.

Add a service to config.yml:

services:
    cache:
        class: DoctrineCommonCacheApcCache

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));
}