title: What does "=>" mean in PHP?
body: <p>What does the <code>=&gt;</code> operator mean in the following code?</p>
  
  <pre><code>foreach ($user_list as $user =&gt; $pass)
  </code></pre>
  
  <p>The code is a comment at PHP.net.
  The user does not specify the value of <code>$user_list</code>, <code>$user</code> or <code>$pass</code>.
  I normally see that <code>=&gt;</code> means equal or greater than.</p>
  
  <p>However, I am not sure about its purpose here because it is not assigned.
  I read the code as </p>
  
  <ol>
  <li>process a list of users in integers</li>
  <li>such that the value of each user is equal or greater than password   </li>
  </ol>
  
  <p>The above does not make sense to me.</p>