I am developing w web site. Here I have included a thumnail page. It’s working well in my localhost. But when I uploaded its show me an error see 

```
Warning: Cannot modify header information - headers already sent by (output started at /mydomain/demo1/admin/thumbnail.php:50) in /mydomain/demo1/admin/act-addVehicle.php on line 191

```

my code

```
if(move_uploaded_file ($tmpName,$path.$actual_image_name)){
                        $succ=1;
                        chmod("$add",0777);
                        $imgSucc=1; 
                            //strt image thumbnail
                        include("./thumbnail.php");
                        // ends
                        }else{ echo "Failed to upload file Contact Site admin to fix the problem"; 
                        exit;}

```

How I avoid this error
is there any settings in php ini ?

does anyone know ?
please reply