How To Handle Exception in Laravel 10 Example Tutorial

Exception handling is an important part of web application development because it ensures that mistakes are handled gracefully, preventing disruptions to the user experience. Laravel 10 includes a sophisticated exception handling system to assist you in dealing with various types of issues. With real examples, we will walk you through the steps of managing exceptions in Laravel 10.

When something goes wrong in your application, you may intercept and manage exceptions gracefully by giving custom replies, reporting failures, and taking relevant steps.

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Let’s get started.

Laravel Installation

Open terminal and run this command to create a laravel project.

composer create-project laravel/laravel myblog

It will create a project folder with name myblog inside your local system.

To start the development server of laravel –

php artisan serve

URL: http://127.0.0.1:8000

Assuming laravel already installed inside your system.

What is an Exception in Laravel?

Exceptions serve the same basic role in Laravel as they do in PHP, but Laravel extends and improves PHP’s exception handling capabilities to give a more organised and expressive manner to deal with failures and exceptional situations within the framework.

Laravel HTTP Exceptions,

Laravel includes a set of HTTP exception classes for dealing with HTTP-related issues. NotFoundHttpException, ModelNotFoundException, ValidationException, and other exceptions are among them. These classes make it easy to gracefully handle HTTP-specific failures.

Laravel Exception Try Catch Block

To handle exceptions gracefully in Laravel, as in PHP, you may use a try…catch block. This is a crucial strategy for dealing with errors and unusual circumstances in your Laravel application.

Here’s how you can use the try…catch block in Laravel:

try {

    // Code that may throw an exception

} catch (\Exception $e) {

    // Handle the exception here
}

Let’s go over the steps,

The try block is where you put the code that may throw an exception. This is where you put potentially problematic code that might cause errors or exceptions.

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The catch block comes after the try block and is in charge of catching and handling exceptions that occur within the try block. You indicate how you wish to respond to the exception in the catch block.

How To Handle Exception in Laravel?

Here, we will consider a small program where we write a code inside controller.

It checks a variable, if exists then Okay else generate an error / exception.

<?php

namespace App\Http\Controllers;

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

class HomeController extends Controller
{
    public function index()
    {
        try {
            $user = User::find($input['id']);
        } catch (Exception $e) {

            $message = $e->getMessage();
            var_dump('Exception Message: ' . $message);

            $code = $e->getCode();
            var_dump('Exception Code: ' . $code);

            $string = $e->__toString();
            var_dump('Exception String: ' . $string);

            exit;
        }

        return response()->json($user);
    }
}

Add Route

Open web.php file /routes folder. Add this route into it.

//...

use App\Http\Controllers\HomeController;

Route::get('data', [HomeController::class, 'index']);

Application Testing

Run this command into project terminal to start development server,

php artisan serve

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URL: http://127.0.0.1:8000/data

That’s it.

We hope this article helped you to learn How To Handle Exception in Laravel 10 Example Tutorial in a very detailed way.

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