uploader php problem

Migrating my web pages to drupal, I ran into a problem with my upload pages.
The following lines seem to crash:

  // start of dynamic form
  $uploadNeed = $_POST['uploadNeed'];
  for($x=0;$x<$uploadNeed;$x++){
  php

" type="file" id="uploadFile<? echo $x;?>">

  // end of for loop
  }
  php

Does drupal misinterpret the php content? hike