Using your flash and split-second timing to shoot high-speed photography of water balloons exploding can create spectacular results. In this tutorial we’ll show you step-by-step how to do it.

OAuth can be anything you want it to be, the standards are lax and give you plenty of room for getting the right implementation for your system. However you proceed, though, you'll need to check an access token on every request - and in a Slim application, a middeware can help enormously since it hooks in to every request by design. I've recently implemented this and thought I would share.

In our latest Shoot Like A Pro series we take an in-depth look at some of the most common problems that plague new photographers and explain some simple methods and jargon-free beginner photography tips for avoiding them. This week we turn our attention to focusing and maintaining sharp images.

If you have not used BootStrap so far, or more than that – have not heard about it – I would recommend you take a closer look to this framework. The fact is that this is really a great choice for those who appreciate the convenience and speed of website development. Today I will tell you about how to create a responsive template using BootStrap 3, which will include elements such as: two navigational menus, slider, promo block, a variety of content blocks, various form elements and footer. One more important moment – in this template, we do not use images, it means that our result is focused on speed.

Authentication is required for virtually any type of web application. In this tutorial, I’d like to show you how you can go about creating a small authentication application using Laravel 4. We’ll start from the very beginning by creating our Laravel app using composer, creating the database, loading in the Twitter Bootstrap, creating a main layout, registering users, logging in and out, and protecting routes using filters. We’ve got a lot of code to cover, so let’s get started!

You may have spotted the lightbulb, cloud, electricity and woodshed symbols on your camera’s screen or menus. You may have also ignored them as being yet another degree of complexity that you don’t need to know about.

Alternatively, you may have seen people on the Internet earnestly discussing colour temperature and swearing by all sorts of essential products that will guarantee perfect results, if you re-mortgage your house this one last time. And ignored it as another expense that you can probably do without.

Well that thing you’re ignoring is one of the most powerful ways of making your photos convey the scene you wanted to capture: white balance.

Laravel 4 is a huge step forward for the PHP community. It’s beautifully written, full of features and the community is presently exploding. Today we’re going to explore how to build multisite applications with it.

Any system admin working in a service provider network would certainly agree that Cacti is one of the most widely used tools in network management solutions. It is open source, has built in user authentications and user permission features, shipped with frequently used graph templates like bandwidth, 95th percentile, hard disk usage, CPU usage, load average, RAM statistics and many more. Cacti also supports 3rd party templates and plugins. If those are not enough, one can write and use one’s own templates, and that is the beauty of open source software.

Linux Apache MySQL PHP + Bitcoin tutorial.
For this introduction we assume that you have GNU/Linux server with Apache and PHP and that you wish to interact with the Bitcoin network from a web application. We assume some knowledge of Bitcoin and experience in PHP.
While this is written for PHP, the same principles apply for other languages. See the associated API reference pages for info on other languages.
The easiest way to get started is to run Bitcoin in daemon mode with which PHP communicates via local HTTP requests. A library called JSON-RPC is used to call the various functions of bitcoind, which will respond back with a JSON object.

What is Symfony2 Framework?
A set of bundles containing configuration and bridge classes
These glue the components together, giving the developer a consistent experience
Symfony 2 is a PHP Framework for web development
Symfony 2 is MVC
Symfony 2 is OOP
Symfony 2 is not Symfony 1 (>=PHP 5.3)
Symfony 2 is HTTP-centric
Symfony 2 is like bits of Rails and like bits of Java
Why Symfony2?
Based on project needs Symfony can be used as:
Full framework
Micro framework (single file apps)
Symfony Components (stand alone)
Symfony comes with tight integration with many open source projects like Monolog, Assetic, Doctrine, Propel.
Powerful and easy routing.
Very advanced and useful template engine TWIG

Do you struggle with colour rendition and sharpness when shooting in low light? In this quick guide we run through some of the best camera settings for taking pictures at twilight.

Przygotowanie klienta Bitcoind do obsługi w PHP
Na początku musimy posiadać aktualną wersję Bitcoind, zsynchronizowaną i działającą. Polecam aktualną wersję z git-a, gdyż ma wiele usprawnień związanych z obciążeniem IO (dostępu do dysków). W konfiguracji Bitcoind musimy podać dane dostępowe, poprzez RPC (zdalne wywołanie) oraz zwiększyć liczbę keypoool (ilość początkowych adesów),  aby nie mieć problemów z dodawaniem nowych adresów.

Slim is a lightweight framework that packs a lot of punch for its tiny footprint. It has an incredible routing system, and offers a solid base to work from without getting in your way. Let me show you!
But that’s not to say that Slim doesn’t has some issues; it’s one-file setup becomes cluttered as your application grows. In this article, we’ll review how to structure a Slim application to not only sustain, but improve its functionality and keep things neat and systematic.

In Part 1, I have shown you how to set up Symfony 2 and link up the database. We also covered some fundamental concepts of the framework. In this part, we will link things up by creating routes, controllers, entities/repositories, and views to get the site up and running.

Digital goods are an increasingly valuable commodity. Whether you're a designer selling templates or font files, a developer charging for packages of code or a musician selling MP3s, selling digital goods online is often far easier than physical goods – with much lower production costs and no delivery charges.

In this article I'll show how you can implement a simple store selling digital goods using PHP along with Stripe, a payment provider who aims to make it easier than ever to take online payments since you don't need to set up special merchant accounts or deal with complex payment gateways.

Osobiście nie przepadam za wszelkiej maści edytorami wizualnymi (WYSIWYG). Uważam, że więcej z nimi problemów niż korzyści. No ale wiadomo, klienta zdanie web developera za bardzo nie interesuje i chce po prostu dodawać treść tak samo łatwo jak w Wordzie. Co w takiej sytuacji zrobić?

W ostatnim czasie pozytywnie zaskoczył mnie TinyMCE 4. Można go praktycznie w dowolny sposób dostosować – od wyboru funkcji na pasku narzędzi po stworzenie styli dostosowanych do potrzeb klienta. Dodatkowo możemy wewnątrz edytora dostosować CSS tak, by treść wyglądała praktycznie tak jak na docelowej podstronie. Inną bardzo przydatną rzeczą jest możliwość usunięcia wszelkich „śmieci” z tekstu wklejanego prosto z edytora tekstu.

Laravel 4 is a huge step forward for the PHP community. It’s beautifully written, full of features and the community is presently exploding. We’re going to use it to create a socket based, real time chat application.

In our latest Professional Photographer to the Rescue series post our pro shares his best macro nature photography tips to help our apprentice learn how to take pin-sharp pictures of wildflowers, lichen, butterflies and much more.

One of the reasons that certain technocrats favor native applications is their ability to store data locally on the client. HTML5 made a breakthrough by allowing web applications to store data in the browser.

Although cookies are available to store data in the browsers, there are certain disadvantages to that – which were addressed with the invention of HTML5 Web Storage.

There’s nothing new about panoramic photography: it’s just that it’s now easier than ever before. In this tutorial we’ll run through the basics of panoramic photography, offer some tips on how to shoot your scene and then show you an easy way to stitch them together.