check duplicate id in laravel collection code example
Example: laravel collection find duplicates
$users = Users::all();
$usersUnique = $users->unique('id');
$usersDupes = $users->diff($usersUnique);
dd($users, $usersUnique, $usersDupes);
$users = Users::all();
$usersUnique = $users->unique('id');
$usersDupes = $users->diff($usersUnique);
dd($users, $usersUnique, $usersDupes);