title: PHP Object () identifier
body: <p>What is the name of the integer between brackets in a var_dump of an object. And how do I acces it with PHP?</p>
  
  <p>I'm referring to the (3) in the next example.</p>
  
  <blockquote>
  <pre><code>    object(SimpleXMLElement)#18 (3) {
         ["ID"]=&gt;
        string(3) "xx"
         ["Name"]=&gt;
         string(25) "xx"
         ["Date"]=&gt;
         string(10) "xx"
      }
  </code></pre>
  </blockquote>