# simple directory walk with callback function

<?php
function callbackDir($dir)
{ 
   # do whatever you want here
   echo "$dir\n";
}

function walkDir($dir,$fx)
{
  $arStack = array();
  $fx($dir);
  if( ($dh=opendir($dir)) )
  { while( ($file=readdir($dh))!==false )
    { if( $file=='.' || $file=='..' ) continue;
      if( is_dir("$dir/$file") )
      { if( !in_array("$dir/$file",$arStack) ) $arStack[]="$dir/$file";
      }
    }
    closedir($dh);
  }
  if( count($arStack) )
  { foreach( $arStack as $subdir )
    { walkDir($subdir,$fx);
    }
  }
}

walkDir($root,callBackDir);
?>