<?php
function count_files($dir) {
   $num = 0;
   if(!is_dir($dir))
      return is_file($dir) ? 1 : false;
   foreach(glob("$dir/*") AS $entry) {
      if(!in_array($entry, array('..', '.'))
         $num += count_files("$dir/$entry");
   }
   return $num;
}
?>