title: Lead backslash at the beginning of dynamic class name
body: <p>The code:</p>
  
  <pre><code>$className = '\MyNamespace\MyClass';
  $object = new $className();
  </code></pre>
  
  <p>throws error 'Class not found'</p>
  
  <p>But this code:</p>
  
  <pre><code>$object = new \MyNamespace\MyClass();
  </code></pre>
  
  <p>is not.</p>
  
  <p>First code fragment works at staging but not at my local. Do I need to enable something at my local server?</p>
  
  <p>Many thanks for help</p>