title: Return anonymous functions
body: <p>I want to have a function written in PHP which can create anonymous functions which ~5 parameters and return them so I can store them in a key/value array and call them later without any knowledge about the parameters given and more than once.</p>
  
  <p>E.g.</p>
  
  <pre><code>$fun();
  </code></pre>
  
  <p>How do I achieve the returning and the reusable calling afterwards?</p>
  
  <p>Thanks in advance.</p>