Implement asynchronous processes in PHP

Implement asynchronous processes in PHP:


One of the main reasons we need asynchronous processes in PHP is to allow something very time consuming to happen in the background, but not keep the client “on hold” for that entire duration; as PHP is typically synchronous, anything that takes a long time on the server will appear to take a long time for the client.

In that scenario, one solution would be to “detach” the client from the currently loading page, and let them have control of their browser back while the PHP script continues to do it's thing. We should be able to make this happen by sending some headers to the client to say “ok, we’re done here, connection ends”, even though PHP is still running.




class Service
{
    const HEADER_NEW_LINE = "\r\n";

    public function store()
    {
        /*code for reduce process time*/
        self::closeConnection('true');
       //do your code that take much more time e.g. upload a video or import an excel that take more time
    }

    public static function closeConnection($instantOutput = '') {
        set_time_limit(0);
        ignore_user_abort(TRUE);
        header('Connection: close' . self::HEADER_NEW_LINE);
        header('Content-Encoding: none' . self::HEADER_NEW_LINE);
        ob_start();
        echo $instantOutput;
        $size = ob_get_length();
        header('Content-Length: ' . $size, TRUE);
        ob_end_flush();
        ob_flush();
        flush();
    }
}



There are another way to implement asynchronous in php like open socket, log file, fork a curl process etc, but as per my requirement i did choose this 'detach client' method, you are free to choose any method as per your requirement.

Thanks.

How to implement Breadcrumbs in Laravel 5.1

How to implement Breadcrumbs in Laravel 5.1:

Today we will discuss about how to implement Breadcrumbs in Laravel 5.1.

1. Install Laravel Breadcrumbs

Note:-Laravel 5.0 or above is required – use the 2.x version for Laravel 4.

Install with Composer

Run this at the command line:

$ composer require davejamesmiller/laravel-breadcrumbs

This will both update composer.json and install the package into the vendor/ directory.
Add to config/app.php

Add the service provider to providers:



'providers' => [
    // ...
    DaveJamesMiller\Breadcrumbs\ServiceProvider::class,
],
And add the facade to aliases:

'aliases' => [
    // ...
    'Breadcrumbs' => DaveJamesMiller\Breadcrumbs\Facade::class,
],
2. Define your breadcrumbs

Create a file called app/Http/breadcrumbs.php that looks like this:

<?php

// Home
Breadcrumbs::register('home', function($breadcrumbs)
{
    $breadcrumbs->push('Home', route('home'));
});

// Home > About
Breadcrumbs::register('about', function($breadcrumbs)
{
    $breadcrumbs->parent('home');
    $breadcrumbs->push('About', route('about'));
});

// Home > Blog
Breadcrumbs::register('blog', function($breadcrumbs)
{
    $breadcrumbs->parent('home');
    $breadcrumbs->push('Blog', route('blog'));
});

// Home > Blog > [Category]
Breadcrumbs::register('category', function($breadcrumbs, $category)
{
    $breadcrumbs->parent('blog');
    $breadcrumbs->push($category->title, route('category', $category->id));
});

// Home > Blog > [Category] > [Page]
Breadcrumbs::register('page', function($breadcrumbs, $page)
{
    $breadcrumbs->parent('category', $page->category);
    $breadcrumbs->push($page->title, route('page', $page->id));
});



3. Choose a template

By default a Bootstrap-compatible ordered list will be rendered, so if you’re using Bootstrap 3 you can skip this step.

First initialise the config file by running this command:

$ php artisan vendor:publish

Then open config/breadcrumbs.php and edit this line:

'view' => 'breadcrumbs::bootstrap3',

The possible values are:

    Bootstrap 3: breadcrumbs::bootstrap3
    Bootstrap 2: breadcrumbs::bootstrap2
    The path to a custom view: e.g. _partials/breadcrumbs

4. Output the breadcrumbs

Finally, call Breadcrumbs::render() in the view template for each page, passing it the name of the breadcrumb to use and any additional parameters – for example:

{!! Breadcrumbs::render('home') !!}

{!! Breadcrumbs::render('category', $category) !!}

Thanks.

How to get full detail of user's system in php?

Get full detail of user's system in php:

For getting full detail of any user's system (including browser, os etc) we have to use this function.



    public function getDeviceDetail()
    {
        $user = new UserController();
        $user_agent = $_SERVER['HTTP_USER_AGENT'];
        $os_platform = array();
        $os_array = $user->deviceList();
        foreach ($os_array as $regex => $value) {
            if (preg_match($regex, $user_agent)) {
                $os_platform[] = $regex;
            }
        }
        return $os_platform;
    }



Using this function we will get all the details of any user.

Thanks