Have a Byte

Please read the "Getting Started" section if you are unfamiliar with getting the project going.

What it's about:

Some background:

When we display how much data our clients have moved the source is in bytes. 1 byte is the smallest denomination we store in our database. So if a user have moved 1.5 GB - he has really moved 1610612736 bytes. I'll let you figure out how to work that out on your own ;)

What should I do?

Please write a class that will take input of bytes, and convert it to the nearest largest "big size". In other words, if I give you 536870912000 - this works out to 500GB... but if I give you 1319413953331 - this works out to 1.2 TB.

Here are a few examples:

• 500 bytes = 500 B
• 1024 bytes = 1 KB
• 1048576 bytes = 1 MB
• 1356797348675 bytes = 1.234 TB

Where the code sits:

You can look at two files:

• play.php: This is the file you'll run using php play.php to see the code in action.
• You'll see there's an EchoCave test-class already in place. It's simple enough to follow and figure out what and why and where :) If you get stuck though, ask.

Testing:

To test, just run: php play.php as you did before, and see the results.

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Getting Started / Installing

Before you start, please have a quick read about the following technologies:

• Git:
  • Setting up Git - according to Github.com - this is a quick guide to set up a Git repository on your localhost (you won't need to do this, but it helps understanding it when you start playing with these repositories)
  • Git Tutorial for Beginners 1 What is Git Introduction - This video series is for those of you who are like I am - I'd rather watch the video than read :)
    • The cool thing about that video list is, it's a list - so there's much more down the line than just introduction. Have a bit of a browse around.
• Composer
  • Composer, in a few words, is a "package manager". Most of you are familiar with linux, so you do things like "yum" or "apt-get" to install software. Think of composer as being yum or apt-get, but for PHP.
  • It's as easy telling it that your project will be using something specific, and runnnig an installation for it. You can then start to use those classes and libraries in your code.
  • Read more about it here: Introduction to Composer

Right, let's start coding:

You'll have to Fork this project (because you won't have access to submit your code to my repository). Then you'll have to Clone it to your local machine. Then you'll have to install all the dependencies with composer, so that you can actually start work on it.

• Forking:
  • My repository is read-only to you, so you'll have to "copy" it. In github terms it's called forking.
  • Read up about forking here
• Cloning:
  • You can't work directly on github (well, you can, but you can't run your code there) - so you'll have to copy it down to your local machine. In github / git terms that's called cloning.
  • Read up about cloning here
• Installing your dependencies:
  • Just run php bin/composer install inside your directory on localhost where you cloned it, and you should see a ton of stuff being installed.

Is it working?

If you run this:

php play.php

And you get the output:

It worked! Try giving your own value! :)

It means it's working perfectly :)

Please chat to me or one of the devs if you need more help, and we'll give you a nudge in the right direction.