function uploadfile(){
$target_dir = "upload/avatar/";
$filename = "koti"."-"."raju"."-".basename($_FILES["file"]["name"]);
$target_file = $target_dir . $filename;
move_uploaded_file($_FILES["file"]["tmp_name"], $target_file);
$json_register= file_get_contents('php://input');
$registerdata = json_decode($json_register,true);
$post_username = $registerdata['username'];
$arr = array(
'profilepic'=>$filename
);
$check = $this->register_model->edit($arr,$post_donor_id);
if($check > 0)
{
$msg = "Data Updated Successfully";
header('Content-type: application/json');
$data = array('status' => "0",'desc' => $msg);
echo json_encode($data);
}
}