Deleting first item of a $_COOKIE array
<p>if I add an item to the $_COOKIE array as such:  </p>

<pre><code>setcookie("favorites[]", "value",  time()+3600);   
</code></pre>

<p>I can delete any item from the $_COOKIE[favorites] array like this:  </p>

<pre><code>setcookie("favorites[$deletekey]", "", time()+3600);  
</code></pre>

<p>EXCEPT the first one added so this does not work:  </p>

<pre><code>setcookie("favorites[0]", "", time()+3600*24);  
</code></pre>

<p>How can I delete the first one and leave others intact?</p>
