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3D Cube Flip Effect for WOW.js

Daniel Gheorghe Difficulty: 10 / 50
cubes

Hi there, It’s cool CSS animations day!
I did this for a customer a few days ago and thought it would be nice to share it.
For those of you who are not familiar with WOW.js, it is a cool JavaScript plugin, created by Matt Aussaguel that reveals animations when you scroll.
While Wow.js plays nicely with animate.css the former CSS generator doesn’t have a 3D flip effect and that’s what I needed for my project. So… here’s the demo

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How to backup Ubuntu and restore it using "dd"

Daniel Gheorghe Difficulty: 20 / 50
Codepunker-dead-hard-drive

DD is a Unix and Unix-like utility that is primarily used to convert and copy files. One really useful use-case for dd is that it can "pack" entire partitions into one single image file, thus allowing users to recover entire disks by "unpacking" and restoring a file-system in case of hardware failure.

To create a full backup for a partition the command you need to run is straight-forward. The size of the resulting image file will be the same as the size of your partition so make sure you have enough free space on the drive you are placing your backup... also, please avoid placing your image file on the same drive that you're backing up.

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The Basics of Time and Date in PHP and MySQL

Daniel Gheorghe Difficulty: 20 / 50
date-time-php-mysql

In this tutorial we will go through doing basic operations with Date/Time functions in PHP and MySQL and learn how to keep time zones in sync inside an application. We'll start by understanding why application level synchronization between the MySQL and PHP time zones is necessary.

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Basics of class visibility and Object Inheritance

Daniel Gheorghe Difficulty: 20 / 50
inheritance

In today's tutorial I will try to explain two of the basic principles of Object Oriented Programming in PHP - class visibility and object inheritance.

I remember that when I started out I had difficulties understanding these things, so in this tutorial I'll try to expose a different angle for looking at some of the confusing aspects of OOP. Hopefully this approach will make everything clearer for you as it did for me ages ago.

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Login with GitHub using PHP

Daniel Gheorghe Difficulty: 35 / 50
Github-Jacket-Mug

This tutorial is not intended as a comprehensive package that fully exploits the GitHub API. It is however, a "guide" that is meant to show you how OAuth2 works by providing a practical example through the use of the GitHub API.

Using this package will authenticate users through their GitHub account by checking their public profile which in turn would represent enough to start a session on the website that creates the request. In this package I use the Slim Framework to read data from requests and configuration parameters, but the thing can be adapted to work with any framework.

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