How to Get Codeigniter Programming Sample Code

CODEIGNITER4

PDF

TCPDF

Generate PDF in CodeIgniter 4 Using TCPDF – Complete Tutorial

PDF generation is essential for invoices, receipts, reports, and printable documents in web apps. CodeIgniter 4 doesn't include a native PDF library, so TCPDF (a robust, open-source PHP class) is a popular choice. This tutorial shows you how to integrate TCPDF in CodeIgniter 4 to generate dynamic PDFs from database data. We'll build a simple invoice system.

CODEIGNITER4

STRIPE

PAYMENTGATEWAY

CodeIgniter 4 Stripe Payment Gateway Integration – Payment Intents

Integrating a reliable and secure payment gateway is essential for any modern e-commerce application, membership site, or online service. In 2026, Stripe remains the #1 choice for developers worldwide due to its excellent documentation, global payment support, built-in fraud protection, and seamless compliance with PSD2, SCA, and 3D Secure standards.

CODEIGNITER 4

XML

SITEMAP

Create a Dynamic XML Sitemap in CodeIgniter 4 – Complete Tutorial

A dynamic XML sitemap in CodeIgniter 4 automatically lists your website's URLs (including posts, pages, or products) and helps search engines like Google discover and index content faster. This improves SEO, crawl efficiency, and visibility — especially for sites with frequently updated or database-driven content.

In this guide, you'll build a fully dynamic sitemap that pulls URLs from a database, includes metadata like lastmod, changefreq, and priority, and serves it at /sitemap.xml.

CODEIGNITER 4 JWT API AUTHENTICATION

CODEIGNITER 4 LOGIN AND REGISTER WITH JWT

JWT

API

AUTHENTICATION

CodeIgniter 4 JWT Authentication: Complete Tutorial for Secure API Login & Register

Build a secure, token-based authentication system for your CodeIgniter 4 REST API using JWT (JSON Web Tokens). This stateless approach is ideal for mobile apps, SPAs, and microservices. We'll cover setup, user registration/login, token generation/validation, protected routes, and best practices.

CODEIGNITER4

AJAX

LOADMOREDATA

JQUERY

CodeIgniter 4: Load More Data on Page Scroll with AJAX and jQuery (Infinite Scroll)

Infinite scrolling (also called endless scroll or lazy pagination) improves user experience by automatically loading more records as the user scrolls down — no "Next" buttons needed. In this tutorial, we'll build it in CodeIgniter 4 using jQuery AJAX to fetch paginated data from MySQL without page reloads.

CODEIGNITER PROGRAMMING SAMPLE CODE

Generate PDF in CodeIgniter 4 Using TCPDF – Complete Tutorial

CodeIgniter 4 Stripe Payment Gateway Integration – Payment Intents

Create a Dynamic XML Sitemap in CodeIgniter 4 – Complete Tutorial

CodeIgniter 4 JWT Authentication: Complete Tutorial for Secure API Login & Register

CodeIgniter 4: Load More Data on Page Scroll with AJAX and jQuery (Infinite Scroll)

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