Problem Zip.

[eluser]Browser[/eluser]
Hello all, i have the new code:

function comprimir($nombre) {
$this->load->library('zip');
$this->zip->read_file('http://localhost/searchmedic2/uploads/'.$nombre,TRUE);
$this->zip->download('my_backup.zip');
}

But, it don`t compile the file, why ?

Thanks you.