Laravel Tutorial Day 4

Learning Objectives: Understanding the use of Controller. As its name says it’s a Controller, so you can manage many things using this Controller. Let’s Make a Controller and see the demo also we will make the Login Page and Its verification code using the get and post method respectively.

Command to Create Controller in Laravel:

php artisan make:controller UserController

<?php
 
namespace App\Http\Controllers;
 
use App\Models\User;
use Illuminate\View\View;
 
class UserController extends Controller
{
    /**
     * Show the profile for a given user.
     */
    public function show(string $id): View
    {
        return view('user.profile', [
            'user' => User::findOrFail($id)
        ]);
    }
}

Once you create Controller, You will find the Controller file and then you need to make changes to Route

Route Settings:
use App\Http\Controllers\NameOfController
Route::get(‘/courses’, NameOfController::class)

use App\Http\Controllers\UserController;
 
Route::get('/user/{id}', [UserController::class, 'show']);

Now inside the Controller, you need to call the View or you can make your customized code there.

If you wish to create a Controller for multiple functionalities like Insert, Update, Delete, and View, then you have the following options in Laravel:

Command to Create Resource Controller in Laravel:

php artisan make:controller PhotoController --resource

Route Settings:

use App\Http\Controllers\PhotoController;
 
Route::resource('photos', PhotoController::class);

Now look into the Resource Controller file you will find many functions ready to get started. Just you need to add your codes into the appropriate functions to get started. This type of controller is used for CRUD Operations

Create a Login Page and Verification Code using Laravel Step-by-Step Guide

Create a View with the following name: login.blade.php and add the following code to it.

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>

<h2>Login Form</h2>

<form action="/login" method="post">
    @csrf
  
  <div class="container">
    <label for="uname"><b>Username</b></label>
    <input type="text" placeholder="Enter Username" name="uname" required>
    <br/><br/>
    <label for="psw"><b>Password</b></label>
    <input type="password" placeholder="Enter Password" name="psw" required>
    <br/>    
    <button type="submit">Login</button>

</div>


  </div>
</form>

</body>
</html>

Now Let’s make Controller and then we need to add 2 functions (1 function for displaying this view and 2nd for receiving data when user submits form)

Command to Create Controller

php artisan make:controller LoginController

Now add the following code to the controller. Remember you already have a class so you just need to add 2 functions into it.

class LoginController extends Controller
{
    //
    public function index()
    {
        return view('login');
    }

    public function login(Request $req)
    {
        $uname = $req->uname;
        $pass = $req->psw;

        if($uname=="admin" && $pass=="12345")
        {
            echo "Success";
        }
        else
        {
            echo "Invalid Username or Password";
        }
    }

}

Now it’s time to set up Route and then run!

use App\Http\Controllers\LoginController;


Route::get('/login', [LoginController::class, 'index']);
Route::post('/login', [LoginController::class, 'login']);

We are ready to help you to

Grow your Business with Right Tools and Technology