Image insertion problem into DB in laravel - php

Question

I am facing this error while uploading an image with a title and description text to DB in PHP Laravel. I am using the same code for other webpage there it is working properly but the same code is not working here.
Below is a function code inside my controller, where I am passing tile, description, img and input names from a form.
public function submitFanfic(Request $request){
$user_id = session('userid');
$name = $_FILES['img']['name'];
$tem_name = $_FILES['img']['tmp_name'];
$dir = 'public/uploads/fanfic/';
$dir1 = $dir.$name;
move_uploaded_file($tem_name, $dir1);
$data = array(
'fanfic_title' => $request['title'],
'fanfic_desc' => $request['description'],
'img' => $name,
'user_id' => $user_id
);
DB::table('fanfic')->insert($data);
Session::flash('message', 'Fanfic Submitted Successfully');
return redirect('/author/write_fanfic');
}

Answer 1

I tried again and again and this code (specifically for image insertion into DB) worked!!
public function submitFanfic(Request $request){
$user_id = session('userid');
$imageName = $request->file('img');
if($imageName!==null){
// get the extension
$extension = $imageName->getClientOriginalExtension();
// create a new file name
$new_name = date( 'Y-m-d' ) . '-' . str_random( 10 ) . '.' . $extension;
// move file to public/images/new and use $new_name
$imageName->move( public_path('uploads/fanfic'), $new_name);
}
$fanfic_data = array(
'fanfic_title' => $request['title'],
'fanfic_desc' => $request['description'],
'img' => $new_name,
'user_id' => $user_id
);
DB::Table('fanfic')->insert($fanfic_data);
Session::flash('message', 'Fanfic Submitted Successfully');