title: Storing function in session variable
body: <p>Is it possible to store an anonymous function in a session var and use it later on?</p>
  
  <p>For instance:</p>
  
  <pre><code>$func = "echo $str;";
  $_SESSION['myfunc'] = create_function('$str',$func);
  </code></pre>
  
  <p>When I call <code>$_SESSION['myfunc']('Hello')</code> it works fine on the page it is created in. When called in another page however, I get the error </p>
  
  <blockquote>
    <p>Call to undefined function()</p>
  </blockquote>
  
  <p>The other session-vars are available, so that's not the problem. In the session data I see a reference to a lambda, but I can't get it to work.</p>