PHP/File Directory/rewind

rewind and fseek

   <source lang="html4strict">

<?

   $filename = "data.txt";
   $handle = fopen($filename, "w+");
   fwrite($handle, "Mnnkyys\n");
   rewind($handle);
   fseek($handle, 1);
   fwrite($handle, "o");
   fseek($handle, 2, SEEK_CUR);
   fwrite($handle, "e");
   fclose($handle);

?>

 </source>