All Laravel, PHP & CodeIgniter Tutorials

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 32 posts · Page 1 of 6
CodeIgniter 4 File Manager: Upload, Preview, Download & Delete Files with Drag-and-Drop CodeIgniter

CodeIgniter 4 File Manager: Upload, Preview, Download & Delete Files with Drag-and-Drop

Managing file uploads is a core requirement for most web applications — from CMS platforms and project management tools to document portals and media libraries. Building a full-featured file manager gives users the power to upload, organize, preview, and manage their files through an intuitive interface. In this tutorial, you will build a complete file manager module in CodeIgniter 4 featuring drag-and-drop uploads with Dropzone.js, server-side validation, file listing with DataTables, image thumbnails, document preview, download and delete operations, and folder organization — all backed by a MySQL database.

By Revathi M · Read
CodeIgniter 4 Email System: Send Emails with SMTP, Templates & Queue using Gmail and Mailtrap CodeIgniter

CodeIgniter 4 Email System: Send Emails with SMTP, Templates & Queue using Gmail and Mailtrap

Sending emails is a core feature of almost every web application — from user registration confirmations to password resets and marketing newsletters. Most tutorials only cover the basics, but a real-world email system needs much more. In this comprehensive tutorial, you will build a complete email system in CodeIgniter 4 with SMTP integration for Gmail and Mailtrap, reusable HTML templates with dynamic placeholders, an email queue with cron-based processing, retry mechanism for failed deliveries, and a full dashboard for monitoring and logs.

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 CodeIgniter Shield — a powerful, secure, and flexible authentication & authorization library built specifically for CodeIgniter 4. In this comprehensive, step-by-step guide, you will learn how to build a complete login and registration system from scratch using Shield. We cover everything from installation and configuration to creating controllers, views, routes, and testing — with full source code included. 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
How to Build a Simple Blog in CodeIgniter 4 with MySQL and Bootstrap Tutorial CodeIgniter

How to Build a Simple Blog in CodeIgniter 4 with MySQL and Bootstrap Tutorial

Learn how to build a fully functional blog application using CodeIgniter 4, MySQL, and Bootstrap 5 in this beginner-friendly tutorial. We walk through the complete process — from project installation and database migration to creating models, controllers, views, and routes. By the end, you will have a working blog with Create and Read functionality styled with Bootstrap, which you can extend with Update, Delete, authentication, and pagination for production use.

By Revathi M · Read
Boost CodeIgniter 4 Performance and Page Speed: Why It's Ideal for Small Projects CodeIgniter

Boost CodeIgniter 4 Performance and Page Speed: Why It's Ideal for Small Projects

Is your CodeIgniter 4 application running slower than expected? Performance optimization is critical for user experience, SEO rankings, and server costs — especially for small projects where every millisecond counts. This in-depth guide covers practical, battle-tested techniques to dramatically speed up your CI4 application: from full-page caching and query optimization to server-level compression and session tuning. We also compare CI4 head-to-head with Laravel and Symfony to help you decide which framework truly fits your next small project.

By Revathi M · Read
Role-Based Login System in CodeIgniter 4: Admin & User Roles – Best for Small Projects? CodeIgniter

Role-Based Login System in CodeIgniter 4: Admin & User Roles – Best for Small Projects?

Securing user access is a critical step in any web application, especially when different users need different levels of control. CodeIgniter 4 (CI4), known for its lightweight footprint and speed, is an excellent choice for implementing role-based access control (RBAC) in small to mid-size projects. In this hands-on tutorial, we will build a complete role-based login system from scratch in CodeIgniter 4 — covering database setup with migrations, user authentication with hashed passwords, session-based role management, route-level middleware filters, and separate admin and user dashboards. Whether you are building a blog, internal tool, or small e-commerce app, this guide gives you full control over authentication without the overhead of third-party libraries.

By Revathi M · Read