title: REDIS EXISTS with PHP
body: <p>I have multiple keys that have the same name except for one word <code>(user.delete.id</code>, <code>user.add.id</code>, <code>user.update.id</code>... etc). I want to delete a certain key if any of those keys exist. So I was wondering if it's possible to do something like the following PHP:</p>
  
  <p>In User class</p>
  
  <pre><code>$cachekey = 'user.'
  </code></pre>
  
  <p>In another class</p>
  
  <pre><code>$redis-&gt;exists(User::$cachekey.'*.'.$id)
  </code></pre>
  
  <p>will using the asterisk symbol work?</p>