How to remove duplicates in collection?

Question

I have collection in Laravel:

Collection {#450 ▼
  #items: array:2 [▼
    0 => Announcement {#533 ▶}
    1 => Announcement {#553 ▶}
  ]
}

Answer 1

You can unique the data set from the SQL level with groupBy + Max Try below

YourModelName::select(DB::raw('max(`town_short_name`) as town' 'town_long_name'))
        ->groupBy(['town_short_name'])
        ->without('postalCode','country','countryState')
        ->where('town_short_name','like','%'.$townName.'%')
        ->limit(100)
        ->orderBy('town_short_name');