title: How do I know if any PHP caching is enabled?
body: <p>I used to think caching was very hard to install so I've never done it... After reading about APC, it seems pretty easy to install. I always thought I would have to modify lots of PHP code inside my application to use it lol.</p>
  
  <p>Anyways, I am wanting to install APC. I can use phpinfo() and notice it's not listed on the page, so it's not installed. Does this also show for the various other cache systems out there? I don't want to install APC if I have another caching system already installed since I'm not sure if it'll cause conflicts. Do hosts automatically install these for you?</p>
  
  <p>What are the steps to check for to see if I have any sort of caching enabled?</p>