PHP Readonly Properties and Classes: Immutability Complete Guide
Complete guide to PHP readonly properties (8.1) and readonly classes (8.2): immutability benefits, getters vs readonly, syntax differences, constraints, and when to use each.
Tag: Software Development
About Mocking in Unit Tests
Mocking in unit tests is a powerful technique. This post addresses when and how to use mocks properly in PHP.
PHP Traits: When to Use Them (and Why to Avoid Them)
Complete guide to PHP traits: what they are, what changed in PHP 8.0–8.3, why they violate SOLID principles, and why Dependency Injection is the better alternative.
Scalable System Design: Design a Contact Tracing System
In this post, I want to address scalable system design and how to grow a system while it's user base grows.
Brushing Up My Computer Science Skills: A Deep(er) Dive
This blog post is part of preparation for a computer science interview in big tech. Summarizing my computer science skills in a blog post.
Mastering a MySQL 5.7 Migration Successfully
A brief summary of how to migrate large databases to MySQL 5.7 and steps upgrading MySQL while keeping production up and running.
Converting Roman Numerals To Decimal Integers
This blog post addresses converting Roman Numerals to decimal integers as a preparation for a coding interview for Big Tech.
Simple URL Crawler to Extract Internal and External Links in PHP
This blog post addresses a very simple, not finished URL Crawler that separates internal and external URLs appearing on a website.
Vagrant Getting Started
This blog post is a summary of my getting started with Vagrant in 2019. It shows a very specific set up and may or may not fit to your needs.
Traversing a 2D Matrix
In this blog, I address the problem of 'find the number of islands' or 'connected components in an undirected graph' traversing a 2D matrix.