UserController.php

<?php

namespace App\Http\Controllers\Employer\Dashboard;

use App\Http\Controllers\Controller;

use App\Models\User;

class HomeController extends Controller
{
  public function getUserPosts($id) {
    $users = User::all();
    $users->)->map(function ($user) {
      $user->first_name; // The accessor has to be "accessed" for the function to work.
      $user->phone_number; // This would create this property and do the concatenation.
    });
    return response(['data' => $users], 200);
  }
}