All Tutorials & Sample Codes

Browse all our Laravel 12, CodeIgniter 4, and PHP tutorials. Each guide includes working source code, best practices, and step-by-step instructions.

All Codeigniter Laravel PHP
Showing 1–6 of 79 posts · Page 1 of 14
How to Build a REST API with PHP and MySQL: Complete CRUD Tutorial PHP

How to Build a REST API with PHP and MySQL: Complete CRUD Tutorial

REST APIs are the backbone of modern web and mobile applications. Whether you are building a React or Vue frontend, a mobile app, or integrating with third-party services — a well-structured REST API is essential.<br /> In this tutorial, you will learn how to build a complete RESTful API from scratch using plain PHP and MySQL. No frameworks required — just clean, structured, and production-ready code with proper HTTP methods, status codes, input validation, and error handling.

By Revathi M · Read
Implement JWT Authentication in PHP: Step-by-Step Guide PHP

Implement JWT Authentication in PHP: Step-by-Step Guide

JSON Web Tokens (JWT) have become the standard for stateless API authentication. Unlike traditional session-based auth, JWT allows you to authenticate users without storing session data on the server — making it ideal for RESTful APIs, single-page applications, and microservices.<br /> In this comprehensive guide, you will learn how to implement JWT authentication in plain PHP from scratch — covering token generation, validation, middleware protection, and security best practices.

By Revathi M · Read
Stripe Payment Gateway Integration in PHP: Complete Step-by-Step Guide PHP

Stripe Payment Gateway Integration in PHP: Complete Step-by-Step Guide

Integrating a secure and reliable payment gateway is essential for any e-commerce or SaaS application. Stripe is one of the most popular payment processors worldwide, offering a developer-friendly API, robust security with PCI compliance, and support for cards, wallets, and subscriptions.<br /> In this comprehensive tutorial, you will learn how to integrate Stripe Payment Gateway into a plain PHP application from scratch — including creating a checkout form, processing payments securely using Stripe PHP SDK, handling errors, and verifying payments. No framework required.

By Revathi M · Read
Laravel 12 Queue and Jobs Tutorial: Background Processing Made Easy Laravel

Laravel 12 Queue and Jobs Tutorial: Background Processing Made Easy

In modern web applications, performance is everything. When users upload files, register accounts, or trigger heavy operations like sending emails or resizing images, you don't want your page to hang for seconds — or worse, timeout. This is where Laravel queues and jobs come to the rescue. In this hands-on guide, we'll walk through setting up queues in Laravel 12, creating jobs, dispatching them, handling failures, and running workers in both development and production.

By Revathi M · Read
CodeIgniter 4 Authentication Tutorial: Build Login & Registration System from Scratch CodeIgniter

CodeIgniter 4 Authentication Tutorial: Build Login & Registration System from Scratch

Authentication is one of the most essential features of any modern web application. While older tutorials relied on custom implementations or the now-deprecated Myth/Auth library, the official and recommended approach in 2026 is <b>CodeIgniter Shield</b> — a powerful, secure, and flexible authentication &amp; authorization library built specifically for CodeIgniter 4.<br /><br /> In this comprehensive, step-by-step guide, you will learn how to build a complete <b>login and registration system from scratch</b> using Shield. We cover everything from installation and configuration to creating controllers, views, routes, and testing — with full source code included.<br /><br /> This tutorial is perfect for beginners and intermediate PHP developers who want a secure, scalable, and clean authentication system following CodeIgniter 4 best practices.

By Revathi M · Read
Common Laravel 12 Errors and How to Fix Them Quickly Laravel

Common Laravel 12 Errors and How to Fix Them Quickly

Laravel 12, released in early 2025, brings streamlined bootstrapping, enhanced error handling, and improved performance features. However, even with these advancements, developers often encounter common pitfalls that can halt progress. In this guide, we cover the 11 most frequent Laravel 12 errors — from permission denials and class-not-found issues to CORS failures and cache headaches. Each error includes the root cause, a step-by-step fix, and complete code examples so you can debug faster and ship with confidence.

By Revathi M · Read

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