rename function won't work inside foreach an while

[eluser]jonny68[/eluser]
Hi,

i just found out it wasn't about path,

this is a working foreach:

$dir = './uploads/'.$this->session->userdata('username').'/';
foreach($files as $file =>$value){
rename($dir.$value['name'],$dir.$file.$value['name']);
}

Thanks a lot anyway!