title: XPATH get Entrys with Value 1 on 5. Position of Attribute
body: <p>I have a XML File:</p>
  
  <pre><code>&lt;attribute id="1" export="01101"&gt;
    &lt;value&gt;test&lt;/value&gt;
  &lt;/attribute&gt;
  </code></pre>
  
  <p>Now, I want all Entrys, where the Number is 1 on 5th. Digit in Attribute export.
  I use PHP for the Query.
  I have tried this, but doesen't work:</p>
  
  <pre><code>$xpath-&gt;query("//attribute/@export[substring(., 4, 1) = '1]");
  </code></pre>
  
  <p>Any Ideas? Thank you.</p>