dynamic global var for uploading images

[Anon]

I am dynamically creating upload file/image fields. I read the manual and it appears that php4 may have a
problem with this. http://php.unam.mx/manual/en/features.file-upload.multiple.php

                      However, if you look at the 13th & 15th post down, there is a way around this. Each input element must be
                      a unique name. 

                      Ok. So my problem is that I'm dynamically creating these fields and using them in functions. Therefore, I
                      need to create global variables named userfile$i and don't know how to do this. 

                      Here is my code for the first function which dynamically creates the image fields. This works fine. 

                      for ($i = 1; $i<= $numberimages;$i++) 
                      { 
                      print "<tr><td>Image $i</td><td><input name='userfile$i' type='file'></td></tr>"; 

                      } 

                      Here is my code for autogenerating global variables. This is the part I don't know how to do: 

                      for ($i = 1; $i<= $numberimages;$i++) 
                      { 
                      $userfile="userfile".$i; 
                      $userfile_name="userfile".$i."_name"; 
                      $userfile_size="userfile".$i."_size"; 
                      global $$userfile; 
                      global $$userfile_name; 
                      global $$userfile_size; 

                      } 

                      Many Thanks

[Anon]

Sorry. Didn't mean to post this twice!

[lxghak]

Not true. I find it a LOT easier to do arrays with multiple file uploads.

<input type="file" name="upload[]">
<input type="file" name="upload[]">
etc

submit.php:

for($i = 0; $i < sizeof($HTTP_POST_FILES['upload']['name']); $i++) {
if(!empty($HTTP_POST_FILES['upload']['name'][$i]) {
copy($HTTP_POST_FILES['upload']['tmp_name'][$i], $destination . $HTTP_POST_FILES['upload']['name'][$i]);
}
}

If you need further help, I am only an email away (or post)