Help, I cannot Unlink

[eluser]konank[/eluser]
Please help me,
I'm Cannot unlink

This my code in model..

Code:

public function delete_data_siswa($id,$img1,$img2)
        {
            $path = "".base_url()."images/".$img1;
            $path2 = "".base_url()."images/thumbs/".$img2;
            
            $data = $this->db->where('id',$id);
            $data = $this->db->delete('absensi_data_siswa');
            unlink($path);
            unlink($path2);
            return $data;
          
        }

error :

Code:

A PHP Error was encountered

Severity: Warning

Message: unlink() [function.unlink]: http does not allow unlinking

Filename: models/db_model.php