Character Arrays in C++

This tutorial will show you how to use char (character) arrays in c++. In case you don't know, in the coding world there are strings of text, e.g.:

"Hello world!"

and these strings can be divided into arrays of characters:

'H' + 'e' + 'l' + 'l' + 'o' + ' ' + 'w' + 'o' + 'r' + 'l' + 'd' + '!'

Each character within a string, file, network packet, or etc. can easily be accessed individually if you use a character array:

charArray[0] == 'H'
charArray[1] == 'e'
etc...

In this tutorial, we will be making a program that will read an input file (which is expected to be a series of phone numbers separated by commas), go through each character in the file and make some changes, and then output the result to another file.

Averaging Multidimensional Data for D3 Part 2

In my previous tutorial, I showed you conceptually how to average the data such that the 3 pieces of data in each row are averaged together and only 1 bar and text is shown per row for each average. This time I'm actually going to backtrack to the code I was using in the tutorial before that so that I can show you another way of averaging the data.

What we're going to average this time are not the 3 pieces of data per row (we're going to leave those alone this time); instead, we're going to average all of the elements each with a unique "Site Type" and "Media Type" value together.

Averaging Multidimensional Data for D3

Building from the example in my previous tutorial, I am only going to slightly modify a few aspects of the graph. My goal for this tutorial is to show how to code the graph differently such that the 3 pieces of data per row are averaged together into 1 piece of data per row.

Working with PHP HTTP GET Variables

This tutorial assumes you know the basics of how HTML and PHP work together. The better your understanding of their relationship, the easier this tutorial will be to understand.

What makes a website different from a picture? It usually has interactivity (buttons, links, videos, etc.), but it also has something else: customizability. If it has an account system, for instance, you can enter your username and password, and it will check its database for your credentials.

Once signed in, you will receive a more personalized web page, perhaps with information such as Facebook notifications, new Youtube channel subscribers, or the amount of money you have in your Paypal account. How does this work when you're using HTML and PHP? That's what this tutorial is going to help with.