title: What is '&' meaning in this php code
body: <p>i using word press, and i try to learn it,
  but is see the code which i didn't understand</p>
  
  <pre><code>$post = &amp;get_post($id);
  </code></pre>
  
  <p>i see '&amp;' before the get_post,
  what is '&amp;' meaning?</p>
  
  <p>thank</p>