[igorlazunna]

Ciao, io faccio così, e non ho problemi, prova a dare un'occhiata:

<form name=upload action=upload.php method="post" enctype="multipart/form-data">
<input name="userfile[]" type="file">
<input type=submit value="UPLOAD">
</form>



upload.php


<?
  for($i=0;$i<sizeof($userfile);$i++)
  {
  if(!$userfile_size[$i])
  continue;

    $UPLOAD = fopen( $userfile[$i], "r" );
    $contents = fread( $UPLOAD,$userfile_size[$i]);
    fclose( $UPLOAD );


     if(file_exists("upload/".$userfile_name[$i])) {
     echo "Esiste già un file con nome $userfile_name[$i].";
     } else {
       $SAVEFILE = fopen( "upload/".$userfile_name[$i], "wb" );
       fwrite( $SAVEFILE, $contents,$userfile_size[$i] );
       fclose( $SAVEFILE );
     }
  }

?>