Learn Coding Fundamentals

Become a better developer by mastering the coding fundamentals. From security and testing to OOP and functional programming, you'll learn it all here.

Getting started with Coding Fundamentals

  • HTML & CSS for Beginners (MEGA Free Course!)

    HTML & CSS for Beginners (MEGA Free Course!)

    Adi Purdila
  • All Coding Fundamentals tutorials:

    1. Number Systems: An Introduction to Binary, Hexadecimal, and More

      Number Systems: An Introduction to Binary, Hexadecimal, and More

      Tutorial Beginner

      Ever see crazy binary numbers and wonder what they meant? Ever see numbers with letters mixed in and wonder what's going on? You'll find out all of this and...

    2. Search and Replace Strings With Regular Expressions in PHP

      Search and Replace Strings With Regular Expressions in PHP

      Tutorial Intermediate

      In this tutorial, you'll learn how to search and replace strings with regular expressions in PHP.

    3. Form Input Validation Using Only HTML5 and Regex

      Form Input Validation Using Only HTML5 and Regex

      Tutorial Beginner

      In this tutorial, you will learn how to implement basic form validation using attributes like type and pattern using regex and in HTML5.

    4. Understanding Variable Scope in PHP

      Understanding Variable Scope in PHP

      Tutorial Beginner

      In this tutorial, you will learn about variable scope in PHP. We will also cover the usage of global and static keyword.

    5. Formatting the Current Date and Time in PHP

      Formatting the Current Date and Time in PHP

      Tutorial Beginner

      This tutorial will teach you how to format the current date and time in PHP. You will also learn how to get the timestamp from a date string and how to add...

    6. How to Check if a String Contains Another Substring in PHP

      How to Check if a String Contains Another Substring in PHP

      Tutorial Beginner

      In this quick tip, we will go over multiple methods to determine if a string contains another substring in PHP.

    7. How to Call a PHP Function From JavaScript

      How to Call a PHP Function From JavaScript

      Tutorial Beginner

      In this tutorial, I'll teach you how to call a PHP function from JavaScript using jQuery AJAX and the Fetch API. You will also learn how to call JavaScript...

    8. Functions in PHP: Return Values and Parameters

      Functions in PHP: Return Values and Parameters

      Tutorial Beginner

      This tutorial will teach you how to create your own user-defined functions in PHP. You will learn about return values from a function and function parameters...

    9. How to Use Sessions and Session Variables in PHP

      How to Use Sessions and Session Variables in PHP

      Tutorial Beginner

      Sessions allow user information to be persisted across all the pages of a website or app. In this post, you'll learn the basics of session handling in PHP:...

    10. Scrape the Web at Scale With the scrapestack API

      Scrape the Web at Scale With the scrapestack API

      Tutorial Beginner

      Using the scrapestack API, you can quickly and efficiently scrape web pages from anywhere in the world and turn them into actionable data that you can put to...

    11. Quickly Build a PHP CRUD Interface With the PDO Advanced CRUD Generator Tool

      Quickly Build a PHP CRUD Interface With the PDO Advanced CRUD Generator Tool

      Tutorial Beginner

      In this article, we’re going to review PDO CRUD—a form builder and database management tool. PDO CRUD helps you build forms for your database tables with...

    12. Real-Time News Data With the mediastack API

      Real-Time News Data With the mediastack API

      Tutorial Beginner

      Whether you run a non-profit organization, a small business resources website, a community news aggregator website, or you simply want to run an RSS feed on...