php clean extra parameters in urls
<p>when I post a link to facebook such as this one <code>http://www.zzz.com/images.php?i=kwlhjv</code>
when the users on facebook clicks on the link they are directed to the same page I posted but with another parameters that facebook add to the url
How can I remove those get parameters with php ?
(I still want to keep my <code>i=kwlhjv</code> parameter)
example of facebook redirect url :</p>

<pre><code>http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.zzz.com%2Fimages.php%3Fi%3Dkwlhjv%26ref%3Dnf&amp;h=TAQGrLLtbAQEG_HgubmSe57WD1q-uf0_kz_-2ADc6jr9xAw&amp;s=1
</code></pre>
