How the send multiple checkbox values to database in laravel?

Question

This is my view for the customer register.

<form action="store" method="post">

    <input type="hidden" name="_token" value="{{csrf_token()}}">

    <label for="name">Name</label>
    <input type="text" name="name">
    <br>

    <label for="email">Email</label>
    <input type="text" name="email">
    <br>

    <label for="country">Country</label>
    <select name="country" id="country">
        <option value="india">India</option>
        <option value="srilanka">SriLanka</option>
        <option value="usa">USA</option>
    </select>
    <br>

    <input type="radio" name="gender" value="male">
    <label for="male">Male</label>

    <input type="radio" name="gender" value="female">
    <label for="female">Female</label>
    <br>

    <input type="checkbox" name="favorite[]" id="south" value="south">
    <label for="south">South</label>

    <input type="checkbox" name="favorite[]" id="north" value="north">
    <label for="north">North</label>

    <input type="checkbox" name="favorite[]" id="east" value="east">
    <label for="east">East</label>

    <br>

    <label for=""></label>
    <input type="submit" name="submit" value="Submit">

</form>

Well all values are going to database but the checkbox are going as array.

But if i remove [] in favorite. The last checkbox value is going to database.

This is my controller code

public function store(Request $request)
{
    $user= laravel::create(Request::all());
    return "data saved";
}

And this is my model

class laravel extends Model
{
    protected $fillable = [
        'name', 
        "email", 
        "gender", 
        "country", 
        "favorite"
    ];
}

Can any one tell me how to send all checkbox values to database whatever customer is checked.

I want to know how to edit checkbox to update.

Thank you in advance.

Solution

Make a text column in your table with the name of favorite and use this logic to store your values inside of it as csv

public function store(Request $request)
{
    $request->merge([ 
        'favorite' => implode(',', (array) $request->get('favorite'))
    ]);

    laravel::create($request->all());

    return "data saved";
}