title: Modify PHP Object Property Name
body: <p>In PHP is it possible to change an Objects property key/name? For example:</p>
  
  <pre><code>stdClass Object
  (
       [cpus] =&gt; 2
       [created_at] =&gt; 2011-05-23T01:28:29-07:00
       [memory] =&gt; 256
  )
  </code></pre>
  
  <p>I wish to change the key <code>created_at</code> to <code>created</code> in the Object leaving an object that looks like:</p>
  
  <pre><code>stdClass Object
  (
       [cpus] =&gt; 2
       [created] =&gt; 2011-05-23T01:28:29-07:00
       [memory] =&gt; 256
  )
  </code></pre>