move_uploaded_file
  (PHP 4 >= 4.0.3, PHP 5)
move_uploaded_file — Moves an uploaded file to a new location
  
 
 
  Description
  
   bool move_uploaded_file
    ( string $filename
   , string $destination
   )
  
  
   This sort of check is especially important if there is any chance
   that anything done with uploaded files could reveal their
   contents to the user, or even to other users on the same
   system.
  
  
 
  Parameters
  
   
    - 
     filename
     
- 
      
       The filename of the uploaded file.
       
- 
     destination
     
- 
      
       The destination of the moved file.
       
 
 
 
  Return Values
  
   If filename
 is not a valid upload file,
   then no action will occur, and
   move_uploaded_file() will return
   FALSE.
  
  
   If filename
 is a valid upload file, but
   cannot be moved for some reason, no action will occur, and
   move_uploaded_file() will return
   FALSE. Additionally, a warning will be issued.
  
  
 
  Notes
  Note: 
   
    move_uploaded_file() is both safe mode
    and open_basedir
    aware. However, restrictions are placed only on the
    destination
 path as to allow the moving
    of uploaded files in which filename
 may conflict
    with such restrictions. move_uploaded_file() ensures
    the safety of this operation by allowing only those files uploaded
    through PHP to be moved.
   
  
  Warning
   
    If the destination file already exists, it will be overwritten.