This tutorial will help you familiarize yourself with the Modulo operator—one of the fundamental arithmetic operators in PHP. In this post, we'll discuss...

Functions are one of the most important constructs in JavaScript. Learn about them in our new course, Practice JavaScript and Learn: Functions.

In this post, I'll compare linear search and binary search algorithms. You'll see pseudocode for each algorithm, along with examples and a step-by-step guide...

In this tutorial, you'll learn how to sort an array in PHP. You'll learn how to sort in ascending or descending order based on its keys or values. You will...

If you want to learn the ins and outs of file handling for PHP, try our new course, Practice PHP and Learn: File Handling. In just under an hour of video...

JavaScript form validation is now a lot easier than it used to be, thanks to HTML5 and the Constraint Validation API. Learn how it works in our new short...

This tutorial will teach you how to generate random numbers and alphanumeric strings in PHP. We will discuss how to create strings with a specific set of...

In this tutorial, you'll learn several important functions in PHP which are sufficient for all your basic file reading and writing needs. You'll learn how to...

Learn about integers and floats in PHP, as well as the functions which can be used to determine the type of numbers that we are dealing with and convert...

In this post, you'll learn how to use exception handling in PHP. As of PHP 5, we can use try catch blocks for error handling—this is a better way to handle...

Test-driven development (TDD) simply means that you write your tests first. You set the expectations for correct code up front before you have even written a...

Today, we're going to discuss control structures and loops in PHP. I'll show you how to use all the main control structures that are supported in PHP, like...