Add E-com Functionality in existing website

@qasaryome

Want a Stunning online course  e-commerce PHP Website?    Let’s Bring Your Vision to Life! ✅ Get a FREE Live Demo  — Just reply to this message and see your future website in action! ✅ Multiple Design Options — Choose from a variety of modern, eye-catching layouts. ✅ 100% Satisfaction Guaranteed — Or your money back — no questions asked! ✅ 12+ Years of Experience — Proven track record in web development. Portfolio available on request. ✅ See My Work: Check out recent projects here ➡️ https://www.freelancer.com/u/qasaryome ✅ Unlimited Revisions — Until you're completely happy! ✅ 1 Month Free Support — Post-launch support to keep everything running smoothly. ✅ FREE SEO Setup — Includes Google Search Console + Google Analytics integration. ✅ Premium WordPress Website — Mobile-friendly, SEO-optimized & easy to customize. Have Questions? Let’s Chat! Reply now to get started with your FREE demo.b

@Follishitech

✨ E-commerce Integration & PHP Specialist ✨ Hi! I’m Nupur — I add robust e-commerce functionality to existing sites while preserving the site’s current look and code quality. I’ll implement a seamless shopping cart, PayPal checkout, inventory management that decrements on purchase, basic tax/shipping, and order flow into your existing PHP/MySQL order-management system — all with clean, well-commented code. I’m 100% confident I can deliver a reliable cart + checkout system that matches your site’s UI, integrates with your backend order-management, and is structured so additional gateways can be added later without a full rewrite. Quick Questions: 1️⃣ What tech stack is the current site built with ? 2️⃣ How many products/variants will you start with (dozens, hundreds)? 3️⃣ Do you want a staging environment for testing, or should I work directly on the live site with maintenance mode? ➤ I can start immediately after access is provided and deliver a secure, maintainable e-commerce implementation that fits your existing system and is ready to expand when you are. — Nupur

@softwarelinkerrs

As a part of SoftwareLinkers, I have successfully built and integrated various e-commerce solutions for both small and large businesses. With extensive experience in API Integration, CSS, HTML, MySQL and Web Development, I am well-equipped to give your current website the e-commerce functionality you desire. I specialize in adding clean and well-commented code that will ensure seamless shopping experience for your customers while giving you the flexibility to easily adjust product data and shipping rules in the future. Moreover, having worked on similar projects before, I already possess an in-depth understanding of your needs. I understand that you require PayPal as the sole payment method with a possibility of more gateways later. My skills in API development will enable me to efficiently incorporate PayPal's latest REST APIs or smart buttons whichever way you choose to go. I am committed to providing you with the highest quality with a focus on efficiency and user-friendliness. You can count on me to deliver not just a fully-functional e-commerce feature but also a comprehensive hand-off guide tailored specifically to your website's order-management area built with PHP/MySQL. I look forward to discussing the project in detail and offering you transformative solutions that align perfectly with your business goals.

@ShekhWebDev21

Hello, we can add a fully integrated shopping cart and checkout to your existing PHP/MySQL site while preserving your current design and UX. Our team of 6 experienced developers delivers clean, maintainable code and a short hand-off guide so you can update products, inventory and shipping rules later. We’ll implement: • A seamless cart that matches your site’s look and feel. • Inventory decrement on successful purchase and orders written into your existing order-management DB. • PayPal integration using the latest REST APIs / Smart Payment Buttons, with a payment-layer design that makes adding other gateways simple. • Basic tax/shipping calculations (flat-rate shipping configurable in admin). • Order confirmation emails for customer and admin. We follow secure coding practices, provide well-commented PHP/JS/CSS, and include a brief admin pane where you can add/edit products, set stock quantities, adjust flat shipping and tax settings, and review orders. Many clients saw higher conversions; we include one month of minor fixes and support. Post-launch QA and a short video walkthrough included Best regards, Shaikh Mod

@ashinnd84

Hi there, we are a team of developers and we can do this project in no time. Please, send me the project complete details to start the work. Thanks & Regards Ashish Kumar from Coding jobs on-line.

@KahlonCreatives

Hello! ✦✦ Add E-commerce Functionality — Seamless Cart, PayPal Checkout & Order Sync ✦✦ I can add a clean, fully integrated shopping-cart and checkout to your existing site so visitors can place orders, inventory decrements automatically, and order records flow straight into your current PHP/MySQL order-management system. The integration will match your site’s look and feel and be built so additional gateways can be added later without a full rewrite. I’m 100% confident because I’ve implemented PayPal REST + Smart Buttons checkouts, cart flows, inventory logic, and backend order syncs into custom PHP sites—delivering secure, well-commented code that’s easy to maintain. Portfolio: https://www.freelancer.in/u/KahlonCreatives Questions: • Do you want PayPal Smart Buttons (in-context checkout) or the classic redirect flow? • Do you have product data in the DB already, or shall I add a lightweight product table/JSON feed? • Where should orders be inserted in your current schema—can you share the order table structure? • Preferred flat-rate shipping rules (single rate, per-item, per-order)? ✅ Ready to begin immediately — I’ll implement the cart, connect PayPal (sandbox for testing), wire inventory/order sync, test end-to-end, and hand over a concise guide so you can manage products and rules going forward. Thank you, Jatinder.

@sohaibfreelance

Hi, I have read your project description and understood it. I can integrate a seamless shopping-cart system into your existing PHP/MySQL website, implement PayPal as the initial payment gateway with future extensibility, set up basic tax and flat-rate shipping calculations, and ensure confirmation emails are sent to both customers and admin. Clean, well-commented code and a concise hand-off guide will also be provided. I can.. Regards, M Sohaib..

@Hadiibaba

Hiring the right person to integrate e-commerce functionality into your existing website is crucial, which is why I am confident I am the best fit for your project. With my years of experience in web development and proficiency in HTML and PHP, I have successfully implemented numerous e-commerce solutions that align with my clients' unique needs. One of the reasons you should choose me is my ability to deliver clean, well-commented code. I understand how important it is for your site to remain adaptable in the face of future changes and upgrades. Therefore, I will ensure that the codebase remains highly organized and flexible, allowing for easy expandability to accommodate additional payment gateways beyond PayPal. Furthermore, anticipating your interest in PayPal's latest REST APIs or smart buttons, I'd love to inform you that not only am I familiar with them, but I have also implemented them in past projects. This means that besides giving you what you need right now – a seamless shopping cart experience, basic tax and shipping calculations, and confirmation emails– I'll provide you with a comprehensive hand-off guide. It will not only show you where to adjust product data and shipping rules as required but also walk you through any updates or additions you might want down the line. Let's streamline your e-commerce process together!

@mayankinnovative

Hello, You've got a stunning website, but it's missing a crucial element - the ability to sell your products online. Let's change that! *My Approach* I'll integrate a seamless e-commerce experience into your existing website, matching its look and feel. Here's what I'll deliver: - *Shopping Cart*: A smooth, intuitive cart experience that works flawlessly on your site. - *PayPal Integration*: I'll use PayPal's latest REST APIs and smart buttons to ensure secure, efficient payments. My code will be structured to easily accommodate additional payment gateways later. - *Tax and Shipping*: Basic calculations will be implemented, with flat-rate shipping for now. Future adjustments are easy with my clear documentation. - *Confirmation Emails*: Both customers and admins will receive confirmation emails with order details. - *Inventory Management*: Your order-management system will be updated in real-time, ensuring accurate inventory tracking. *Technical Details* - *PHP and MySQL*: I'll use your existing PHP/MySQL setup to ensure seamless integration. - *Clean Code*: Expect well-commented, maintainable code that's easy to understand and modify. - *Hand-off Guide*: *Why Choose Me?* With over 15 years of experience in software development, I've successfully integrated e-commerce solutions into various websites. My expertise ensures a smooth, hassle-free experience. Let's get your website selling products in no time!

@amitbhs

Hello. I had a similar experience with your project. Your beautiful site is ready; now it needs a seamless, secure checkout that feels native to your brand and reliably connects sales to your backend. I will integrate a custom cart and checkout using PayPal's latest REST API. The code will be modular for future payment gateways, include inventory management, and flow into your PHP/MySQL order system with confirmation emails. I've built over 15 similar integrations, with the last reducing cart abandonment by 30%. I'll implement a robust, maintainable solution for your store.

@Rahulsingh5xz

Hello, I’m Rahul Singh from Team Velora, and for 3 years we’ve been building seamless, secure e-commerce features tailored to existing websites. I can integrate a smooth cart system, PayPal checkout (REST/Smart Buttons), inventory updates, and order flow into your current PHP/MySQL setup. Please come to private chat so I can share samples of similar integrations we’ve completed.

@paruls154

Hi With a decade of expertise under my belt, I've tackled numerous projects just like yours, Parul here, and would be honored to equip your website with the functionality it needs to sell products successfully online. From my experience, I understand that maintaining a consistent user experience is key, which is why I strive to provide impeccable code structure and aesthetic integration. So don't wait for your eCommerce dreams to manifest themselves; let me help transform them into a reality! Contact me today for guaranteed satisfaction and success. Regards Parul Saini

@Ussama91

I can deliver a seamless shopping-cart experience matching your site's look and feel, with PayPal integration, basic tax and shipping calculations, and confirmation emails, all using clean, well-commented code, adaptable to your budget, and compatible with your existing PHP/MySQL order-management area. Waiting for your response in chat! Best Regards.

@usmanawan90

Hi thanks for invite, I am ready to take a start on your project, I understand that you need a seamless shopping-cart and PayPal checkout integrated into your existing PHP/MySQL site so inventory decrements on purchase, orders flow into your order-management area, and basic tax/shipping plus confirmation emails are handled. I can start immediately and deliver the complete shopping-cart, PayPal integration (Smart Buttons / REST), inventory sync, tax/shipping logic and order-email notifications within 7 days. I'm waiting for your positive response. Best Regards, Usman

@astechnolabs1

Hello, I understand you already have a fully-designed website and now need a complete shopping-cart and checkout system that integrates smoothly into your existing PHP/MySQL order-management area. I can implement a seamless cart flow that matches your current UI, supports physical product orders, decrements inventory in real time, and passes all order details directly into your current backend without requiring any structural changes. I will integrate PayPal (REST API / Smart Buttons) as your primary payment method and structure the code so adding card/bank gateways later will be simple and modular. I will also set up basic tax and flat-rate shipping logic, plus automatic confirmation emails for both customer and admin. All code will be clean, secure, and well-commented, and I will provide a clear hand-off guide showing how to update products, inventory rules, tax, and shipping settings in the future. I have strong experience in PHP, MySQL, payment integration, and custom e-commerce solutions, and can deliver a reliable system that fits perfectly into your existing workflow. Looking forward to working with you. Regards, AS Technolabs

@infinitrocyber

Nice — I can build that. Below is a focused freelance proposal (scope, technical approach, deliverables, price, and next steps) tailored to your existing PHP/MySQL site and your PayPal-smart-button preference. What I’ll deliver A seamless shopping-cart UI that matches your site (HTML/CSS/JS snippets you drop into your existing pages). Server-side PHP cart/order API that: Creates orders and order items in your existing MySQL order-management area (no separate siloed system). Decrements inventory atomically (DB transactions/row locks) so stock stays accurate. Calls PayPal using the modern Orders (v2) REST API to create & capture payments (smart buttons on frontend + server endpoints). Processes PayPal webhook/callbacks to confirm/capture and handle asynchronous events. Basic tax & shipping: Configurable flat-rate shipping and a configurable tax rate (edit one PHP config file). Confirmation emails: Customer order confirmation + admin notification using PHPMailer (SMTP), with editable templates. Clean, well-commented code and a short hand-off guide that shows: Where to change product data, shipping rules, and tax rate. How to add another payment gateway later (where to plug new gateway adapters). How to switch sandbox/live credentials for PayPal. A small test plan & example curl requests to exercise endpoints and a sample sandbox PayPal flow

@madebyindians45

As an experienced web developer with a specialty in e-commerce and payment systems, my team at Swadeshi Digital Tech has a deep understanding of what it takes to successfully integrate an online store into an existing website. We've worked extensively with PHP, MySQL and various Payment Gateways including PayPal's REST APIs, which positions us perfectly for this project. Our commitment to clean code and solid documentation guarantees seamless integration while minimizing future reliance on developers. We'll not only provide a shopping-cart experience that mirrors your current website design, but we'll also structure the code to easily incorporate other payment gateways as your needs evolve. Moreover, our familiarity with tax and shipping calculations will ensure accurate rates, therefore customer satisfaction. With every transaction, the inventory will decrement as stipulated. Additionally, both administrative and customer email confirmations will be set up promptly - confirming an order has taken place. Choose Swadeshi Digital Tech for an efficient job devoid of hidden charges. A satisfying client experience is our priority and I assure you of that during this engagement. Let's make your vision come to life - together!

@zameerA46

testing...

@AbderrahmaneLa

No description found.