more upload script filename checking

["Michael Knauf/Niles" <mknauf@nilesaudio.com>]

Ok, next question:

Here's my upload script:

<?
      if ($upfile1=="none")
      {
            echo "no file selected for upload please go back and select a
file.";
            exit;
      }

      if ($upfile1_size==0)
      {
            echo "No data was transferred, your file may be too large or
may not exist";
            exit;
      }
      $upfile1_name=str_replace(' ','_',$upfile1_name);
      if (file_exists("/var/www/html/files/$upfile1_name"))
      {
      echo "<Font color=red>file $upfile1_name already
exists</font><p>Note: Your file may have been renamed if it contained
spaces, this is so that links to the file will work correctly.</P><P> If
you want to replace an existing file, Talk to Michael Knauf.";
      exit;
      }

      if (!is_uploaded_file($upfile1))
      {
            echo "file may contain upload attack, this is not allowed";
            exit;
      }

      $okfile1="/var/www/html/files/".$upfile1_name;

      if ( !copy($upfile1, $okfile1))
      {
            echo "Could not move file";
            exit;
      }

      echo "File uploaded successfully<BR><BR>";
      $fp = fopen($okfile1, "r");
      $contents = fread ($fp, filesize ($okfile1));
      fclose($fp);

      $fp = fopen($okfile1, "w");
      fwrite($fp, $contents);
      fclose($fp);

      echo "<HR>";

      echo "you can link to your file at: <A
HREF=http://red.niles.net/files/$upfile1_name>http://red.niles.net/files/$upfile1_name</A>";
?>

That all works fine, and accepts a file from a simple html form file
element: <input type="file" name="upfile1">

So I think, my, wouldn't it be nice if they could upload 3 or 4 files at
once?

Problem 1, I'm not sure how to structure that, obviously a loop of some
sort, but what makes me cry for help, is that I simply duplicated my html
input <input type="file" name="upfile2"> and called it upfile2, and
duplicated my php code and changed each second instance of upfile1 to
upfile2 which worked fine, too till I trigger any of the error conditions
in the first iteration... then the "exit" function happens and the second
file is ignored (because i've exited out of the script, I know) the
question is how I exit out of the first iteration but not the second...

Michael



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