myvideogamelist.com/app/Http/Controllers/UserController.php

<?php

namespace App\Http\Controllers;

use App\Models\User;
use Illuminate\Http\Request;

class UserController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        //
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     *
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
    }

    /**
     * Display the specified resource.
     *
     * @param  string  $username
     *
     * @return \Illuminate\Http\Response
     */
    public function show($username = null)
    {
        // If username is null, $user is the currently logged in user.
        if ($username === null) {
            $user = auth()->user();
        } else { // Otherwise, $user is the user with the specified username.
            $user = User::where('username', $username)->firstOrFail();
        }

        // Direct the user to the profile page.
        return view('pages.profile.index', compact('user'));
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     *
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     *
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     *
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }
}