[PHP] What's this _FILE junk?

[Liam Gibbs]

This line: 
<INPUT TYPE = "FILE" NAME = "imprintpicture" SIZE = "22">

when clicking submit, produces nothing. I print_r $_FILES["imprintpicture"], I try to 
echo $_FILES["imprintpicture"]["name"] or ["tmp_name"] and nothing comes up. Any 
reason?