title: Fatal error: Call to undefined function nusoap_client()
body: <p>I'm trying to consume a soap web service using <code>nusoap</code> and PHP 5.6.25 but I am having some errors. Here is the php code:</p>
  
  <pre><code>    require_once 'nusoap-0.9.5/lib/nusoap.php';
      $client = new nusoap_client('http://www.webservicex.net/ConvertTemperature.asmx?WSDL');
      if($client-&gt;getError()){
          echo 'Error';
      } else {
          echo 'nusoap is working';
      }
  </code></pre>
  
  <p>Error:</p>
  
  <blockquote>
    <p>Fatal error: Call to undefined function nusoap_client()</p>
  </blockquote>