Laravel Updates Learning : New feature in laravel 5.4 Route and Model Binding...

Laravel Updates Learning : New feature in laravel 5.4 Route and Model Binding...: In this article i will explain route model binding . Route model binding provides a useful way to automatically method-inject a model&#3...

Laravel Updates Learning : DD and Dump Collections in Laravel 5.5

Laravel Updates Learning : DD and Dump Collections in Laravel 5.5: Laravel 5.5 is two brand new methods on the Collections class that will make debugging easier than ever before. These are dd and dump . ...

DD and Dump Collections in Laravel 5.5

Laravel 5.5 is two brand new methods on the Collections class that will make debugging easier than ever before. These are dd and dump.

Pretend you have a simple collection setup and are piping it through a few filters:

collect([1,2,3])->map(function($i){
    return $i * 2;
})->reject(function($i){
    return $i < 3;
});

Knowing what happens in each step of the chain is can be difficult and now you’ll have the option to either “dump” it out at a certain point, or “dump and die”. For example:

collect([1,2,3])->map(function($i){
    return $i * 2;
})->dump()->reject(function($i){
    return $i < 3;
});

dump() outputs the results at that moment and then continues processing, here is the results when running that code:

Collection {#181 ▼
  #items: array:3 [▼
    0 => 2
    1 => 4
    2 => 6
  ]
}

dd() on the other hand stops the process immediately and dumps out the results:

collect([1,2,3])->map(function($i){
    return $i * 2;
})->dd()->reject(function($i){
    return $i < 3;
});

And the results:

array:3 [▼
  0 => 2
  1 => 4
  2 => 6
]

These will be welcomed features in Laravel 5.5 and if you’d like to start using these today, Spatie released a 3rd party package named Collection Macros that includes both of these methods and a few additional helpers.

Laravel Lifecycle Architecture Concept of laravel 5.5

Request Lifecycle

• Introduction
• Lifecycle Overview
• Focus On Service Providers

Introduction

When using any tool in the "real world", you feel more confident if you understand how that tool works. Application development is no different. When you understand how your development tools function, you feel more comfortable and confident using them.
The goal of this document is to give you a good, high-level overview of how the Laravel framework works. By getting to know the overall framework better, everything feels less "magical" and you will be more confident building your applications. If you don't understand all of the terms right away, don't lose heart! Just try to get a basic grasp of what is going on, and your knowledge will grow as you explore other sections of the documentation.

Lifecycle Overview

First Things

The entry point for all requests to a Laravel application is the public/index.php file. All requests are directed to this file by your web server (Apache / Nginx) configuration. The index.php file doesn't contain much code. Rather, it is simply a starting point for loading the rest of the framework.
The index.php file loads the Composer generated autoloader definition, and then retrieves an instance of the Laravel application from bootstrap/app.php script. The first action taken by Laravel itself is to create an instance of the application / service container.

HTTP / Console Kernels

Next, the incoming request is sent to either the HTTP kernel or the console kernel, depending on the type of request that is entering the application. These two kernels serve as the central location that all requests flow through. For now, let's just focus on the HTTP kernel, which is located in app/Http/Kernel.php.
The HTTP kernel extends the Illuminate\Foundation\Http\Kernel class, which defines an array of bootstrappers that will be run before the request is executed. These bootstrappers configure error handling, configure logging, detect the application environment, and perform other tasks that need to be done before the request is actually handled.
The HTTP kernel also defines a list of HTTP middleware that all requests must pass through before being handled by the application. These middleware handle reading and writing the HTTP session, determining if the application is in maintenance mode, verifying the CSRF token, and more.
The method signature for the HTTP kernel's handle method is quite simple: receive a Request and return a Response. Think of the Kernel as being a big black box that represents your entire application. Feed it HTTP requests and it will return HTTP responses.

Service Providers

One of the most important Kernel bootstrapping actions is loading the service providers for your application. All of the service providers for the application are configured in the config/app.php configuration file's providers array. First, the register method will be called on all providers, then, once all providers have been registered, the boot method will be called.
Service providers are responsible for bootstrapping all of the framework's various components, such as the database, queue, validation, and routing components. Since they bootstrap and configure every feature offered by the framework, service providers are the most important aspect of the entire Laravel bootstrap process.

Dispatch Request

Once the application has been bootstrapped and all service providers have been registered, the Request will be handed off to the router for dispatching. The router will dispatch the request to a route or controller, as well as run any route specific middleware.

Focus On Service Providers

Service providers are truly the key to bootstrapping a Laravel application. The application instance is created, the service providers are registered, and the request is handed to the bootstrapped application. It's really that simple!
Having a firm grasp of how a Laravel application is built and bootstrapped via service providers is very valuable. Of course, your application's default service providers are stored in the app/Providers directory.
By default, the AppServiceProvider is fairly empty. This provider is a great place to add your application's own bootstrapping and service container bindings. Of course, for large applications, you may wish to create several service providers, each with a more granular type of bootstrapping.

Source:https://laravel.com/

Google recaptcha for Bootstrap forms in depth

In the tutorial, I will be using a working HTML contact form from  my previous tutorial. Our form will be using HTML5 sprinkled with some Bootstrap scaffolding and a JavaScript validator. We will submit it via AJAX (the page will not reload) and process the form values with PHP. At last, we will send an email with PHP and return a response to the original page that will be shown in a status message above the form.

I will mostly focus on working with Captcha today, so in case you have missed my last tutorial, have at least a quick look at it.  

Register your site

To be able to use ReCaptcha, you will need to register your website on ReCaptcha's website first. 

After successful registration, you will get a pair of keys to use with your ReCaptcha. Leave the page open or copy the keys to a text file, we will need them soon.

HTML

We will use the contact form's template from the previous tutorial. 

Pay attention to these changes:

• Replace the data-sitekey attribute with your Site key. ReCaptcha will appear in this div - <div class="g-recaptcha" data-sitekey="6LfKURIUAAAAAO50vlwWZkyK_G2ywqE52NU7YO0S"></div>
• Include the ReCaptcha JS to initialize ReCaptcha on the page - <script src='https://www.google.com/recaptcha/api.js'></script>

Html

<html>
    <head>
        <title>Contact Form Tutorial by Bootstrapious.com</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
        <link href='https://fonts.googleapis.com/css?family=Lato:300,400,700' rel='stylesheet' type='text/css'>
        <link href='custom.css' rel='stylesheet' type='text/css'>
    </head>
    <body>

        <div class="container">

            <div class="row">

                <div class="col-lg-8 col-lg-offset-2">

                    <h1>Contact form Tutorial from <a href="http://bootstrapious.com">Bootstrapious.com</a></h1>

                    <p class="lead">This is a demo for our tutorial dedicated to crafting working Bootstrap contact form with PHP and AJAX background. At this part, we will add Google's ReCaptcha too.</p>


                    <form id="contact-form" method="post" action="contact.php" role="form">

                        <div class="messages"></div>

                        <div class="controls">

                            <div class="row">
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <label for="form_name">Firstname *</label>
                                        <input id="form_name" type="text" name="name" class="form-control" placeholder="Please enter your firstname *" required="required" data-error="Firstname is required.">
                                        <div class="help-block with-errors"></div>
                                    </div>
                                </div>
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <label for="form_lastname">Lastname *</label>
                                        <input id="form_lastname" type="text" name="surname" class="form-control" placeholder="Please enter your lastname *" required="required" data-error="Lastname is required.">
                                        <div class="help-block with-errors"></div>
                                    </div>
                                </div>
                            </div>
                            <div class="row">
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <label for="form_email">Email *</label>
                                        <input id="form_email" type="email" name="email" class="form-control" placeholder="Please enter your email *" required="required" data-error="Valid email is required.">
                                        <div class="help-block with-errors"></div>
                                    </div>
                                </div>
                                <div class="col-md-6">
                                    <div class="form-group">
                                        <label for="form_phone">Phone</label>
                                        <input id="form_phone" type="tel" name="phone" class="form-control" placeholder="Please enter your phone">
                                        <div class="help-block with-errors"></div>
                                    </div>
                                </div>
                            </div>
                            <div class="row">
                                <div class="col-md-12">
                                    <div class="form-group">
                                        <label for="form_message">Message *</label>
                                        <textarea id="form_message" name="message" class="form-control" placeholder="Message for me *" rows="4" required="required" data-error="Please,leave us a message."></textarea>
                                        <div class="help-block with-errors"></div>
                                    </div>
                                </div>

                                <div class="col-md-12">
                                    <div class="form-group">
                                        <!-- Replace data-sitekey with your own one, generated at https://www.google.com/recaptcha/admin -->
                                        <div class="g-recaptcha" data-sitekey="6LfKURIUAAAAAO50vlwWZkyK_G2ywqE52NU7YO0S"></div>
                                    </div>
                                </div>

                                <div class="col-md-12">
                                    <input type="submit" class="btn btn-success btn-send" value="Send message">
                                </div>
                            </div>
                            <div class="row">
                                <div class="col-md-12">
                                    <p class="text-muted"><strong>*</strong> These fields are required. Contact form template by <a href="https://bootstrapious.com/p/bootstrap-recaptcha" target="_blank">Bootstrapious</a>.</p>
                                </div>
                            </div>
                        </div>

                    </form>

                </div><!-- /.8 -->

            </div> <!-- /.row-->

        </div> <!-- /.container-->

        <script src="https://code.jquery.com/jquery-1.12.0.min.js"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
        <script src='https://www.google.com/recaptcha/api.js'></script>
        <script src="validator.js"></script>
        <script src="contact.js"></script>
    </body>
</html>

PHP

In the PHP, we will be using Google's client library that will take care of the verification.

You can use Composer to install it in your project, download it from GitHub or simply use the version I included in the Download package.

Again, pay attention to these changes:

• require the ReCaptcha PHP library - require('recaptcha-master/src/autoload.php'); 
• enter your Secret Key - $recaptchaSecret = 'YOUR_SECRET_KEY';
• initialize the class with your Secret Key - $recaptcha = new \ReCaptcha\ReCaptcha($recaptchaSecret);
• send a call to validate the ReCaptcha - $response = $recaptcha->verify($_POST['g-recaptcha-response'], $_SERVER['REMOTE_ADDR']);
• throw an exception if the validation fails - if (!$response->isSuccess()) {...}

The script then composes the email message, sends it and returns a JSON response. (The script is submitted by AJAX in default)

PHP

<?php
// require ReCaptcha class
require('recaptcha-master/src/autoload.php');

// configure
$from = 'Demo contact form <demo@domain.com>';
$sendTo = 'Demo contact form <demo@domain.com>';
$subject = 'New message from contact form';
$fields = array('name' => 'Name', 'surname' => 'Surname', 'phone' => 'Phone', 'email' => 'Email', 'message' => 'Message'); // array variable name => Text to appear in the email
$okMessage = 'Contact form successfully submitted. Thank you, I will get back to you soon!';
$errorMessage = 'There was an error while submitting the form. Please try again later';
$recaptchaSecret = 'YOUR_SECRET_KEY';

// let's do the sending

try
{
    if (!empty($_POST)) {

        // validate the ReCaptcha, if something is wrong, we throw an Exception, 
        // i.e. code stops executing and goes to catch() block
        
        if (!isset($_POST['g-recaptcha-response'])) {
            throw new \Exception('ReCaptcha is not set.');
        }

        // do not forget to enter your secret key in the config above 
        // from https://www.google.com/recaptcha/admin
        
        $recaptcha = new \ReCaptcha\ReCaptcha($recaptchaSecret, new \ReCaptcha\RequestMethod\CurlPost());
        
        // we validate the ReCaptcha field together with the user's IP address
        
        $response = $recaptcha->verify($_POST['g-recaptcha-response'], $_SERVER['REMOTE_ADDR']);


        if (!$response->isSuccess()) {
            throw new \Exception('ReCaptcha was not validated.');
        }
        
        // everything went well, we can compose the message, as usually
        
        $emailText = "You have new message from contact form\n=============================\n";

        foreach ($_POST as $key => $value) {

            if (isset($fields[$key])) {
                $emailText .= "$fields[$key]: $value\n";
            }
        }
        

        $headers = array('Content-Type: text/plain; charset="UTF-8";',
            'From: ' . $from,
            'Reply-To: ' . $from,
            'Return-Path: ' . $from,
        );

        mail($sendTo, $subject, $emailText, implode("\n", $headers));

        $responseArray = array('type' => 'success', 'message' => $okMessage);
    }
}
catch (\Exception $e)
{
    $responseArray = array('type' => 'danger', 'message' => $errorMessage);
}

if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $encoded = json_encode($responseArray);

    header('Content-Type: application/json');

    echo $encoded;
}
else {
    echo $responseArray['message'];
}

JavaScript

The only change in our JavaScript file will be resetting the ReCaptcha after form's submission. We will do this by calling the grecaptcha.reset(); function.

JavaScript

$(function () {

    $('#contact-form').validator();

    $('#contact-form').on('submit', function (e) {
        if (!e.isDefaultPrevented()) {
            var url = "contact.php";

            $.ajax({
                type: "POST",
                url: url,
                data: $(this).serialize(),
                success: function (data)
                {
                    var messageAlert = 'alert-' + data.type;
                    var messageText = data.message;

                    var alertBox = '<div class="alert ' + messageAlert + ' alert-dismissable"><button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>' + messageText + '</div>';
                    if (messageAlert && messageText) {
                        $('#contact-form').find('.messages').html(alertBox);
                        $('#contact-form')[0].reset();
                        grecaptcha.reset();
                    }
                }
            });
            return false;
        }
    })
});

Result

This is it.

You should have a working contact Bootstrap contact form with ReCaptcha and PHP background now.

I hope you have enjoyed the tutorial. 

DEMO DOWNLOAD FILES

source:https://bootstrapious.com/p/bootstrap-recaptcha?utm_source=sendy&utm_medium=email&utm_campaign=recaptchatutorialdrip