How to save the json array data in database

Hi, does anyone know how to store the data in this format ["123"] in PHPMyAdmin?

Now the data I store into the database is only the value which is 123. I want to store the data like this ["123"]. Does anyone know how to do this?

Here is my code:

Company::create([
            'companyID' =>  $people->people_id,
        ]);