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I already have a working PHP script and I now need it linked to a Chinese payment gateway. I’m flexible on the processor—custom payment gateway api will all work—so long as you can get one of them fully operational on my server. Beyond the gateway hook-up, I want a few light touches to tidy the code: • Minor UI adjustments so the checkout screens match the rest of my site’s styling. • Small functionality enhancements to streamline the payment flow. • A sweep for any lingering bugs you spot while integrating. Please keep the existing architecture intact; I don’t want a full rebuild, just concise edits that make the script stable and production-ready. Deliverables are the updated PHP files, any new config or callback scripts, and a brief README outlining installation steps and credentials I need to request on my side. If this is something you can turn around quickly, let’s talk details and get started right away.
Project ID: 40389798
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Active 25 days ago
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55 freelancers are bidding on average ₹7,866 INR for this job

As a seasoned Full-Stack Web Developer with over seven years of experience, I've successfully integrated various APIs into different systems, including custom payment gateways. My extensive expertise in PHP alongside MySQL makes me an ideal candidate to undertake your project for integrating a Chinese payment gateway seamlessly into your existing PHP script. Having built numerous Ecommerce and Enterprise Websites, I understand the importance of maintaining consistent aesthetics, and I can leverage this knowledge to ensure that your checkout screens harmonize seamlessly with the rest of your site's design. Moreover, my skills in API and Backend Development provide a foundation for efficient streamlining of the payment flow while enhancing functionality. As evidence of my commitment to quality, I have successfully completed 130+ projects with stellar reviews from satisfied clients. With my strong problem-solving abilities, meticulous attention to detail, and in-depth understanding of your requirements, I'm confident that I can make concise yet impactful edits to your codebase making it stable, production-ready and increasing its maintainability. Let’s get started on your project right away!
₹7,000 INR in 7 days
8.8
8.8

Hello, I see you need to integrate a Chinese payment gateway into your existing PHP script while keeping the current architecture intact and refining the checkout flow. I have integrated APIs like Alipay/WeChat Pay with custom PHP systems, handling secure callbacks, signatures, and smooth UI alignment. I will connect a suitable gateway, streamline payment steps, apply minor UI fixes, and remove any bugs without disrupting your codebase. Deliverables will include updated PHP files, config/callback scripts, and a clear README for credentials and setup. Do you have a preferred gateway or region-specific requirement? I will ensure a stable, production-ready integration. The Bid amount is subject to change and will be finalized after a complete project discussion. Let’s get started quickly. Regards, Smile Mittal
₹15,000 INR in 7 days
8.1
8.1

HI! I am an expert web programmer. I have a lot of work experience in Laravel, Codeigniter, PHP, Wordpress, JavaScript, HTML, Vuejs, Reactjs, React Native, and MySQL. I can start right away. I want to discuss this project in detail. Please contact me to discuss more regarding this project. For more details Chat with me
₹12,000 INR in 7 days
7.6
7.6

I am an expert in Shopify, WordPress, and Web Development Technologies. I am ready to start RIGHT AWAY and help you link your PHP script to a Chinese payment gateway. I will make UI adjustments, enhance functionality, and ensure a bug-free integration. Let's discuss and start promptly. Regards, Pooja
₹7,000 INR in 3 days
7.1
7.1

Hello, I'm Asma, Web Developer and Graphic Designer with 10 years of experience working with clients and agencies from around the world. Creative problem solver with a passion for creating visually appealing and user-friendly digital solutions. I love building luxurious brands and designing captivating visual identities. I've worked with clients in lifestyle, property, fashion, hospitality, and luxury sectors. 24/7 Support & Faster Response . #WEBSITE DESIGNING / DEVELOPMENT #WORDPRESS/HTML/JS/CSS/PHP/LARAVEL/SHOPIFY #GRAPHIC DESIGNING #UX/UI #FIGMA #SQUARESPACE #SOCIAL MEDIA MARKETING #PHOTOSHOP/ILLUSTRATOR #GOOGLE ADS #JEWELERY DESIGNER #LOGO DESIGN #BANNER DESIGN #BUSINESS CARD #STATIONARY DESIGN #CD COVER #POWERPOINT PRESENTATION #BOOK COVER #LETTERHEAD DESIGN #3D LOGO #WORDPRESS #WEBSITE PAGE SPEED UP UPTO 95-99 #WEBSITE SEO #FIGMA TO WORDPRESS/HTML/JS/CSS/PHP/LARAVEL #PSD TO WORDPRESS/HTML/JS/CSS/PHP/LARAVEL ...... ETC :)
₹15,000 INR in 3 days
7.1
7.1

With over a decade of PHP development and payment gateway integration, your project is right up my alley. My wide skill set including HTML, MySQL, and Payment Gateway Integration make me the ideal candidate for integrating your existing PHP script with a Chinese payment gateway. I understand the importance of a smooth and secure payment flow for any ecommerce platform, and I assure you that I can deliver not only on the functional requirement but also enhancing the user experience by making the checkout screens consistent with your site's branding. Having delivered 100+ successful projects over my career, I believe my strength lies in understanding client requirements and delivering scalable and secure solutions. This includes making necessary functionality enhancements while keeping the existing architecture intact. Highlighting that, cleaning up code, identifying lingering bugs, and ensuring stability in your script wouldn't be an issue to provide you a stable, production-ready script precisely as needed. Moreover, my extensive experience in bringing digital solutions to life from conceptualization to execution emphasizes on building results-oriented websites instead of just developing them. I value clear communication for smooth collaboration and timely delivery while maintaining long-term support for every project I undertake. Let's discuss further how we can get started right away.
₹9,999 INR in 7 days
6.5
6.5

Hi, 1. Do you already have a preferred Chinese gateway (e.g., Alipay/WeChat Pay), or should I recommend one? 2. Is your server environment shared, VPS, or dedicated? 3. Do you have sandbox credentials ready for testing? I have a strong experience with custom payment gateway APIs and i always focus on minimal changes, maximum impact, clean and maintainable code with clear documentation .I can quickly integrate a Chinese payment gateway into your existing PHP script without disrupting your current architecture. I understand you don’t want a rebuild, just clean, precise improvements—that’s exactly how I work. What I’ll do: -Integrate a reliable Chinese payment gateway (API-based) -Handle secure request/response flow, callbacks, and transaction validation -Ensure everything runs smoothly on your server -Adjust checkout screens to match your site’s design -Keep it clean, consistent, and user-friendly -Remove friction points in the payment process -Improve user experience for faster, hassle-free transactions -Bug Fixing & Stability
₹7,000 INR in 7 days
6.4
6.4

Hi, I can quickly integrate a Chinese payment gateway API into your existing PHP script without altering the core architecture. ✔️ What I’ll do: Payment gateway integration (API + callback handling) Secure transaction flow (success/fail verification) Minor UI fixes for checkout consistency Small functionality improvements for smoother flow Bug check and stability improvements I have experience with payment integrations and PHP systems, ensuring secure and stable implementations. Ready to start immediately. ALOP
₹4,500 INR in 1 day
6.5
6.5

Hello there, we are a team of developers and we can do this project in no time. Thanks Ashish Kumar.
₹7,000 INR in 7 days
5.8
5.8

Hi there, I understand you have an existing PHP payment flow that must be linked to a Chinese payment gateway (custom API or standard processors) without changing your current architecture; I will integrate on your server and keep edits minimal and targeted. - Deliverable: connect and implement gateway integration (API client, callback/notify endpoint, signature verification) and deploy working webhook on your server. - Deliverable: update PHP checkout templates and CSS to match site styles, plus small UX improvements to streamline redirects and error handling. - Deliverable: deliver updated PHP files, new config/callback scripts, database changes (if any), and a README with install steps and credentials required. - Risk/QA: backup checkpoint + staged deployment with post-fix validation and rollback plan. Skills: ✅ PHP ✅ MySQL ✅ API Integration (payment gateway) ✅ Web server deployment (Apache/Nginx) ✅ Payment validation & security (signature, idempotency) Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately. Is this already running on a live production server? Best regards,
₹8,250 INR in 1 day
5.9
5.9

**** PHP Payment Gateway Integration (Chinese Gateway) + Quick Code Cleanup **** I’ll integrate a reliable Chinese payment gateway (e.g., Alipay/WeChat Pay or a compatible API) into your existing PHP script without altering your core architecture. The checkout flow will be refined with minor UI tweaks to match your site and ensure a smooth, user-friendly payment experience. I’ll handle callback/webhook setup, error handling, and test transactions to make the integration fully stable and production-ready. Additionally, I’ll clean up minor bugs and optimize the flow with concise, well-commented improvements—no unnecessary rewrites. Thanks
₹7,000 INR in 7 days
5.7
5.7

I already have a working PHP script in place and now I need it integrated with a Chinese payment gateway. I am flexible on the provider and open to using any reliable custom payment gateway API as long as it can be fully implemented and functioning on my server without disrupting the current system. Along with the payment integration, I need a few light improvements to clean things up and make the flow smoother. This includes minor UI adjustments so the checkout pages visually align with my existing website design, a few small functional enhancements to improve the payment process, and a quick review of the code to fix any bugs or edge cases you may come across during integration. The key requirement is to keep the existing architecture exactly as it is. I am not looking for a rebuild or refactor. Just precise, minimal changes that make the system stable, secure, and ready for production use. Deliverables should include the updated PHP files, any new configuration or callback handler scripts required for the gateway integration, and a short README explaining setup steps along with any credentials or API keys I need to obtain from my side. If you can handle this efficiently and get it done quickly, we can go ahead and finalize the details and start immediately.
₹7,000 INR in 7 days
5.6
5.6

Hi, I can quickly integrate a Chinese payment gateway into your existing PHP script without changing the architecture. I’ll handle API setup, callbacks, UI tweaks, and fix any bugs during integration. You’ll get clean updated files plus a simple setup README. Ready to start immediately and deliver fast. Thanks & regards, Prakash
₹12,500 INR in 7 days
4.8
4.8

As a seasoned full-stack developer with over a decade's experience, I have the expertise you need to flawlessly integrate your existing PHP script with a Chinese payment gateway. My core skills in HTML, MySQL and PHP, complemented by my familiarity with website design and API integration, enable me to navigate between different systems with ease and efficiency for successful project delivery. One of the reasons clients choose to work with me is my ability to comprehend complex requirements rapidly, minimizing back-and-forth issues. Understanding that you require concise edits rather than a full rebuild, I guarantee the stability of the script while effecting changes for an enhanced payment flow. Additionally, my experience in working with CMS platforms such as WordPress, Shopify and WooCommerce makes me well-suited for your minor UI adjustments. I am committed to delivering top-quality results within specified timelines without compromising quality; so let's get started on turning this project around quickly and effectively!
₹7,000 INR in 7 days
5.1
5.1

With my solid expertise and extensive experience in API Integration, HTML, and Web Development, I am confident that I am the top choice to complete your project—PHP Script & Chinese Gateway Setup. Having solved complex coding problems for years, I bring to the table not just great problem-solving skills but a drive to surpass expectations every time. In a nutshell, choosing me means bringing on board someone who is dedicated to your project's success. You can expect secure and scalable implementation with future-ready technologies from me. My transparent communication style and commitment to real partnerships will keep you updated on every progress made and guarantee a smooth collaboration throughout. Let’s start turning this project around quickly for you!
₹12,500 INR in 7 days
4.6
4.6

Hi, I can help you integrate a reliable Chinese payment gateway into your existing PHP script while keeping your current architecture completely intact. I have hands-on experience working with custom payment APIs and integrating gateways like Alipay/WeChat Pay and similar providers. I’ll ensure a secure, smooth, and fully functional checkout flow without disrupting your existing system. Here’s how I’ll approach your project: • Integrate the selected payment gateway API into your current PHP setup • Implement secure server-side validation, callback/notification handling, and error management • Make minor UI refinements so the checkout aligns perfectly with your site’s design • Improve payment flow for better user experience and fewer drop-offs • Test thoroughly to identify and fix any hidden bugs or inconsistencies Deliverables will include: • Updated PHP files with clean, minimal changes • Gateway configuration and callback/response handling scripts • A simple README with setup steps, required credentials, and testing instructions I focus on clean, efficient edits rather than overengineering, so your system remains stable, maintainable, and production-ready. I can start immediately and deliver quickly. Let’s connect to finalize the gateway choice and access details.
₹10,000 INR in 7 days
4.5
4.5

Hi, You need a smooth payment gateway integration without disturbing your existing PHP setup—and that’s exactly how I’ll approach it: minimal changes, maximum stability. I’ll integrate a reliable Chinese payment gateway (Alipay/WeChat Pay or your preferred API) directly into your current flow, handling request signing, callback/notify URLs, and secure transaction validation so payments work consistently in production. Alongside that, I’ll clean up the checkout experience and fix any small issues that could affect conversions or reliability. How I’ll handle it: • Integrate gateway API (payment request + async/sync callbacks) • Secure signature verification & transaction validation • Align checkout UI with your current design • Improve payment flow (reduce steps / handle edge cases) • Debug and fix any existing issues during integration • Keep your current architecture untouched You’ll receive clean updated PHP files, config setup, and a simple README for credentials + deployment. Quick question: do you already have merchant credentials for a gateway (like Alipay/WeChat), or should I help you choose and set one up? Thanks and regards, Sagar Lohni
₹1,500 INR in 7 days
4.5
4.5

Hello, I have read your job description and I am interested in your job post.I am ready to start now. Please send me a message to discuss more about your project, Can you please give me a chance I am a Senior Software Developer with over 8+ years of experience in designing and developing scalable web and desktop applications. I specialize in Microsoft technologies and delivering high-quality, secure, and performance-driven applications. My Expertise: Backend Development:ASP.NET, ASP.NET Core, MVC, Web API, WebForms,Laravel, WCF Services Programming Languages:C#, Php Frontend Development:JavaScript,Angular, React, TypeScript jQuery, AJAX, HTML, CSS Database Technologies:SQL Server, MySQL Reporting Tools:Crystal Reports, RDLC, SSIS, SSRS
₹5,000 INR in 3 days
4.4
4.4

When it comes to API integration and PHP development, I'm the professional you need. My name is Mahad Sheikh, and over the years I've built a reputation for delivering smart, scalable, and future-ready digital solutions. What sets me apart is my ability to understand not just your technical requirements but also your business goals, which aligns perfectly with your project. I specialize in web and software development, and my expertise includes not only PHP, HTML, MySQL but also API Integration - a crucial skill for linking your existing script to a Chinese payment gateway. You can count on me to deliver precisely what you're looking for–streamlined payment flow, minor UI adjustments keeping the checkout screens consistent with your site's styling, and any bug fixes needed for a stable, production-ready script. Moreover, I understand the importance of maintaining the existing architecture while enhancing the functionality. This says that I can get the job done effectively without disrupting what you already have in place. Let's get to work on this exciting project right away! As your technology partner, I’m committed to delivering efficient results without compromising on quality. Partner with me for a seamless experience, impeccable creativity and reliability that will guarantee long-term growth for your system.
₹10,000 INR in 5 days
4.2
4.2

Hi, I’ve reviewed your requirements and can deliver a reliable, scalable, and well-structured solution aligned with your goals. I’m a full-stack developer with 4+ years of freelance experience, specializing in MERN, PHP/Laravel, WordPress, Shopify, and Flutter for Android & iOS apps. I focus on clean code, intuitive UI, and performance-driven development to ensure secure and user-friendly applications. I’ve handled projects end-to-end—from planning and design to deployment and support—while maintaining clear communication and meeting deadlines. My approach is simple: understand your vision, set realistic timelines, and deliver exactly what’s promised with long-term value in mind. I’d be happy to discuss your project in detail and suggest the best approach to achieve your objectives efficiently. Looking forward to working with you. Best regards, Arshiya
₹7,000 INR in 7 days
3.9
3.9

Banthra Sikander Pur, India
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₹12500-37500 INR
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₹37500-75000 INR
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