title: mid-sentence wildcard in php xpath
body: <p>I working with an API that returns employees working on a project.</p>
  
  <p>The workers are delivered in the following format</p>
  
  <pre><code>&lt;projects&gt;
      &lt;project&gt;
          &lt;field name="employee1_id" format="Long"&gt;1&lt;/field&gt;
          &lt;field name="employee1_name" format="string"&gt;Bob&lt;/field&gt;
          &lt;field name="employee2_id" format="Long"&gt;2&lt;/field&gt;
          &lt;field name="employee2_name" format="string"&gt;Ben&lt;/field&gt;
          &lt;field name="employee3_id" format="Long"&gt;3&lt;/field&gt;
          &lt;field name="employee3_name" format="string"&gt;Bill&lt;/field&gt;
      &lt;/project&gt;
  &lt;/projects&gt;
  </code></pre>
  
  <p>How can i use a wildcard to find all employee-ids and omitting any other field that does not end with <code>_id</code>? I've seen functions that uses <code>contains</code> and <code>start-with</code>, but non of them can help me.</p>
  
  <p>I've tried <code>$object-&gt;xpath('field[@name="employee*_id"]')</code> but no luck.</p>