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I’m looking to have a payment gateway wired into my existing website so visitors can complete transactions smoothly without leaving the site. The main goal is straightforward: connect a reliable, secure gateway, test it end-to-end, and hand back clear instructions so I can manage it going forward. Scope • Implement a single payment gateway (I’m open to PayPal, Stripe, Square, or your recommended option). • Configure it to process payments in one currency only—no multi-currency handling is needed right now. • Set up webhooks or API callbacks for payment confirmation and error handling. • Add success / failure pages and basic error messaging that match my site’s styling. • Provide a short deployment checklist and notes on how to update keys or switch from sandbox to live mode. Must-haves • PCI-compliant handling of customer card data. • Clear, well-commented code or plugin configuration. • Functional testing that proves a full transaction flow, including refund or cancel. Tech stack The site is built with standard HTML/CSS and a PHP back end (no framework), so please factor that into your approach. Timeline I’d like to see the gateway live and tested within a week of kickoff, but let me know if you foresee any blockers. Send a brief outline of how you’d tackle this, which gateway you recommend, and any similar integrations you’ve completed.
ID do Projeto: 40170908
92 propostas
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Ativo há 2 meses
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92 freelancers estão ofertando em média €129 EUR for esse trabalho

Hello, With our extensive experience in website design, development and integration, my team and I are best positioned to take on your project for seamless payment gateway integration. We have successfully worked with various payment solutions including PayPal, Stripe, Square and more. However, depending on your specific needs and the nature of your business, we may recommend an option that will be the most cost-effective, secure and efficient for your online transactions. Our proficiency with HTML/CSS and PHP, in line with your tech stack, positions us as the perfect fit for implementing a reliable payment gateway tailored to your existing site’s styling. We are also highly competent at configuring webhooks or API callbacks for smooth payment confirmation and error handling. Adhering strictly to PCI-compliant standards is our top priority alongside ensuring well-commented, easy-to-navigate code or plugin configuration. In terms of timeline, we understand how important it is for you to have the gateway live and tested speedily. We have established an efficient development process that can meet this timeline without compromising quality. Rest assured, by choosing us, you'll have a robust payment gateway integrated within a week while receiving a comprehensive deployment checklist and note on managing key updates or transitioning from sandbox to live mode without any glitches. Let's make the e-payment experience on your website smooth and secure! Thanks!
€130 EUR em 3 dias
8,6
8,6

Hello, I came across your project and found it truly interesting. With over eight years of hands-on experience in this field, I have successfully delivered high-quality solutions to clients worldwide. My dedication to excellence is reflected in the 180+ positive reviews from satisfied clients. I’d love to bring this expertise to your project and ensure outstanding results. However, I do have a few important points I’d like to clarify to align perfectly with your vision. Let’s connect via chat, where I can also share relevant examples of my past work. I'm looking forward to hearing back from you! Best Regards, Divu.
€250 EUR em 5 dias
8,2
8,2

Hi George, To integrate the payment gateway into your website, I will first analyze the current website structure to ensure seamless integration. I will then select the most suitable payment gateway based on your requirements and configure it to process payments in a single currency. Webhooks and API callbacks will be set up for payment confirmation and error handling. Success/failure pages will be designed to match your site's styling. Finally, I will provide detailed instructions for managing the gateway going forward. Let's discuss further. Regards, Sai Bhaskar
€130 EUR em 5 dias
7,8
7,8

Hello, I'll integrate a reliable, PCI-compliant payment gateway, such as Stripe or PayPal, ensuring smooth transactions and clear error handling. I'll provide well-commented code and thorough testing, including a checklist for deployment. Let's chat to discuss your vision and get started!
€100 EUR em 7 dias
7,8
7,8

I can integrate a secure payment gateway (Stripe or PayPal) into your PHP website, handle webhooks, success/failure flows, and fully test transactions. Clean, PCI-compliant setup with clear handover notes—ready to deliver within a week.
€280 EUR em 3 dias
7,8
7,8

Hi, I’m excited about the opportunity to integrate a payment gateway into your website. With extensive experience in PHP and API integration, I can ensure a seamless transaction process for your visitors. I recommend using Stripe for its robust features and user-friendly interface, but I’m open to discussing others like PayPal or Square if preferred. I will ensure PCI-compliance for customer data handling, and implement clear success and failure pages that match your site’s styling. I'll also provide clear documentation for managing the gateway post-launch. With a plan to have everything live and tested within a week, I look forward to your feedback on the payment gateway choice. Best regards,
€140 EUR em 5 dias
7,2
7,2

Hi, I’m interested in learning more about your project. I’ll integrate a secure, PCI-compliant payment gateway directly into your existing PHP-based website using a clear, step-by-step roadmap. With a focused scope and proven integration approach, the gateway can be implemented, tested end-to-end, and made live comfortably within a week. If you award me this project, I’d be happy to discuss it further and get started right away. Short Development → Deployment Roadmap: • Review current HTML/CSS/PHP flow and select the most suitable gateway (Stripe/PayPal/Square) • Implement single-currency payment processing with secure API handling • Configure webhooks for payment success, failure, refunds, and cancellations • Design success/failure pages aligned with your site’s UI • End-to-end testing (sandbox → live), documentation, and handover I’m also interested in a long-term collaboration and future enhancements. If you have any reference websites or a preferred gateway in mind, sharing them will help with feature understanding and more accurate estimation—let’s discuss this further. Best regards, Prakash.S
€199 EUR em 7 dias
7,3
7,3

Hi there, I’m excited about the opportunity to integrate a payment gateway into your existing website. With extensive experience in PHP and payment processing, I will ensure a seamless transaction experience for your users. I recommend using Stripe due to its robust API, straightforward integration, and excellent support for developers. The implementation will follow these steps: 1. Set up the Stripe payment gateway to process a single currency, ensuring PCI compliance for secure card handling. 2. Configure webhooks for payment confirmations and error handling as you requested. 3. Create customized success and failure pages that align with your site's styling. 4. Conduct functional testing to ensure every aspect of the transaction flow works perfectly, including refunds. 5. Finally, I’ll provide a clear deployment checklist and guidance for future updates. I anticipate that we can have the gateway live within a week, barring any unexpected challenges.
€65 EUR em 5 dias
6,8
6,8

Hi, I’m Joya. I recommend integrating **Stripe** for secure, PCI-compliant payments. I’ll set it up with a single currency, configure webhooks for payment confirmation, and ensure success/failure pages match your site’s design. Testing will cover full transactions, and I’ll provide clear instructions for ongoing management. Let’s get started!
€100 EUR em 7 dias
6,9
6,9

I’m experienced in integrating payment gateways seamlessly into websites, ensuring smooth transactions without disrupting user experience. I specialize in connecting reliable and secure gateways like PayPal, Stripe, or Square, tailored to process payments in a single currency. I excel in setting up webhooks, error handling, and custom success/failure pages to match your site’s style. With a focus on PCI compliance and thorough testing, I guarantee a hassle-free integration process. Let's discuss your project needs further.
€250 EUR em 7 dias
6,7
6,7

Hi there, I’d recommend Stripe for its security and clean PHP integration. I’ll embed on-site payments, configure webhooks, style success/error pages, fully test payments and refunds, and provide clear handover notes. Delivery in 3–5 days. Regards, Anisa S
€120 EUR em 3 dias
7,0
7,0

I can integrate a reliable payment gateway into your existing website, ensuring seamless transactions without redirecting users away from the site. I will focus on a PCI-compliant setup and comprehensive testing to guarantee a smooth user experience. I recommend using Stripe for its robust API and straightforward integration with PHP. The implementation will include configuring the gateway to process payments in a single currency, ensuring compliance with your requirements. I will set up webhooks for payment confirmation and error handling, along with success and failure pages tailored to match your site’s design. My approach includes detailed documentation and a deployment checklist to assist you in managing the integration moving forward. Functional testing of the entire transaction flow will be a priority, including scenarios for refunds and cancellations. This will ensure everything works perfectly before going live. Quick question: What is your preferred payment gateway, or would you like to proceed with my recommendation of Stripe? I am ready to start the integration promptly.
€90 EUR em 5 dias
6,4
6,4

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, Website Design, WordPress, CSS, HTML, Web Development, Payment Gateway Integration, API Integration Lets connect in chat so that We discuss further. Thank You
€30 EUR em 7 dias
6,3
6,3

Hey there, I'm confident in integrating a payment gateway seamlessly into your website. With my expertise in Website Design, PHP, CSS, and API Integration, I will ensure a secure and user-friendly transaction experience. I recommend [Choose Gateway] and will handle PCI-compliant card data, error handling, and testing for a smooth flow. I'll customize success/failure pages to match your site's style and provide clear instructions for future management. Let's discuss more about your project needs.
€100 EUR em 2 dias
5,9
5,9

Hello George L., I have extensive experience in integrating payment gateways seamlessly into websites, ensuring a smooth transaction process for visitors. I have successfully worked on similar projects, such as integrating PayPal and Stripe into e-commerce sites, ensuring PCI compliance and secure handling of customer data. In your project, I propose to integrate a reliable and secure payment gateway, configure it for single-currency transactions, set up webhooks for payment confirmation, and provide clear instructions for managing the gateway in the future. I will ensure that success/failure pages and error messaging align with your site's styling and provide detailed documentation for deployment and updates. I am well-versed in PHP and have a solid understanding of HTML/CSS, which will be beneficial for integrating the payment gateway seamlessly into your existing website. I look forward to discussing your project further and sharing insights on how I can tackle this integration effectively. To view examples of my previous work, please visit my portfolio: https://www.freelancer.com/u/SajidaSaqira/SS-Technologies Best regards, Sajida Saqira Let's connect to discuss your project requirements in detail.
€80 EUR em 7 dias
5,7
5,7

With over a decade of experience in web development, I am well-versed in a wide range of coding and markup languages needed for your project. My PHP expertise will be crucial in integrating the payment gateway flawlessly into your existing HTML/CSS website. I have worked with different gateways including PayPal, Stripe, and Square and can recommend the best option for your specific needs. As a seasoned developer, I understand the importance of clear and well-commented code for easy future management. Moreover, I emphasize on PCI-compliant handling of customer card data to ensure complete security throughout the transaction process. My proficiency also extends to functional testing to ensure the end-to-end success of a transaction, including refund or cancel. I am committed to meeting deadlines while maintaining excellent work quality and would be willing to accelerate my timeline if necessary. As a strong organizer and planner, I'm confident in tackling complex projects like yours effectively. Let's build a seamless payment gateway experience for your customers that aligns perfectly with your site's style and functionality. Looking forward to realizing this project together!
€140 EUR em 7 dias
5,8
5,8

As a seasoned Web Developer with extensive experience in HTML, PHP, and more, I am confident that I can deliver a seamless payment gateway integration to your website. Leveraging my knowledge of APIs, PHP and Javascript, I will choose the best-suited gateway (having worked with PayPal, Stripe, Square) or recommend an option that satisfies your unique needs perfectly. I'm well-versed in adhering to PCI compliance to ensure secure transactions and applying clean code practices with thorough documentation. Specifically, my expertise in Yii/Yii2 and Laravel (similar to your PHP back end) showcases my ability to work efficiently with non-framework setups. Your technical stack aligns perfectly with my core competencies. I foresee no major challenges influencing the proposed timeline and will ensure cardinal attention is given to your project so that you receive a fully tested transaction flow capable of handling refunds and cancellations. Thanksssss....
€200 EUR em 7 dias
6,1
6,1

Hi George L., I can connect a secure payment gateway to your PHP site so visitors complete transactions without leaving the site. I recommend Stripe for a single currency setup because of its clear API and webhook support. I will ensure PCI compliant handling, add styled success and failure pages, and provide webhook callbacks for confirmations and errors. Approach in brief: review your current code, implement server side integration in plain PHP, add webhook endpoints, run full transaction tests including refund and cancel, and deliver well commented code plus a short deployment checklist for switching keys and going live. I have completed Stripe and PayPal integrations for PHP sites. Please see my portfolio for examples. Best regards, Saad J.
€150 EUR em 3 dias
5,4
5,4

Hi, I can integrate a secure, PCI-compliant payment gateway into your existing PHP website, allowing visitors to complete transactions without leaving the site. I’ll configure a recommended gateway (Stripe for simplicity and reliability), set up webhooks for payment confirmations and errors, and create styled success/failure pages. Full end-to-end testing will ensure payments, refunds, and cancellations work correctly. I’ll provide well-commented code or plugin configuration along with a short deployment guide explaining key updates, sandbox-to-live switch, and ongoing management. This can be completed within a week, assuming standard server access and credentials. Best Regards, Hamza.
€150 EUR em 2 dias
5,3
5,3

Hi, I fully understand the importance of integrating a seamless and secure payment gateway into your existing website. With over 7 years of experience in web development and API integration, I will implement a PCI-compliant payment gateway like Stripe, known for its robust features and ease of integration with PHP. I will set up secure API callbacks, style success and failure pages to match your site, and provide clear deployment instructions. I can have the full transaction flow tested and live within a week. Best regards, Andrii
€200 EUR em 1 dia
4,5
4,5

Loutraki, Greece
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