sending value from select2 to controller to store

https://stackoverflow.com/questions/38288899/how-to-store-multi-select-values-in-laravel-5-2

public function setFooAttribute($value)
{
    $this->attributes['foo'] = implode(',',$value);
}

public function getFooAttribute($value)
{
    return explode(',',$value);
}

$news = $request->input('news');
$news = implode(',', $news);

$input = $request->except('news');
//Assign the "mutated" news value to $input
$input['news'] = $news;

General_news::create($input);
return redirect()->back();