title: List all keys except for one in associative array
body: <p>This should be simple, but I'm not getting the expected result. The browser either lists all the elements in the array (when I include the "!" operator) or doesn't list any elements (when I don't include the "!" operator). I'm just trying to list everything except for one element or to only list that one element. I can't get either way to work. </p>
  
  <pre><code>    $features = array(
      'winter' =&gt; 'Beautiful arrangements for any occasion.',
      'spring' =&gt; 'It must be spring! Delicate daffodils are here.',
      'summer' =&gt; "It's summer, and we're in the pink.",
      'autumn' =&gt; "Summer's over, but our flowers are still a riot of colors."
      );
  
      &lt;h1&gt;Labeling Array Elements&lt;/h1&gt;
      &lt;?php 
      foreach ($features as $feature) {
      if(array_key_exists('autumn', $features)) { 
      continue;
     } 
     echo "&lt;p&gt;$feature&lt;/p&gt;";
     }    
     ?&gt;
  </code></pre>