Search in Json column with Laravel

The arrow operator doesn't work in arrays. Use this instead:

DB::table('emails')
   ->whereJsonContains('to', [['emailAddress' => ['address' => '[email protected]']]])
   ->get()

I haven't used the json column but as the documentation refers, the below code should work fine.

DB::table('emails')
  ->where('to->emailAddresss->address','[email protected]')
  ->get();