Script PHP copy image

<?php

ignore_user_abort();

function copyFileUrl($sFichier_url){
     $sUrl = @fopen($sFichier_url, "rb");
     if($sUrl != 0){
          $sLocal = fopen($_SERVER['DOCUMENT_ROOT'].'/images/periods/tickets/159/293/conditions.jpg', "wb");
          while(!feof($sUrl)){
               $paquet = fread($sUrl, 65536);
               fwrite($sLocal, $paquet, 65536);
          }
          fclose($sLocal);
          fclose($sUrl);
     }
}

copyFileUrl("http://img802.imageshack.us/img802/8950/conditions.jpg");

?>