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My current site, [login to view URL], still runs on PHP 5.6. I need the entire codebase brought up to the newest stable PHP release, moved to a fresh hosting environment, and cleaned of the template-level problems that stop our email and SMS gateways from firing correctly. The upgrade must preserve all existing functionality while eliminating deprecated calls and library conflicts, so every page, form, and database interaction works exactly as it does now—only faster and more secure. There are a few small enhancements I would like to bolt on once the platform is current, but the immediate focus is: • refactor the code for PHP 8+ compatibility, • configure and test the email/SMS gateway scripts after the refactor, • copy the finished build to the new server and point the domain, • verify that every transactional message (both email and SMS) sends successfully from the new host. I will provide cPanel/SSH access for both the old and new servers plus gateway credentials. Please give me a brief outline of your approach, the key steps you’ll take to spot and squash deprecated functions, and the timeframe you need to complete migration, regression testing, and launch.
Project ID: 40467920
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53 freelancers are bidding on average ₹7,516 INR for this job

Hello, I can upgrade your existing PHP 5.6 website to PHP 8+ while preserving current functionality, improving stability, and ensuring the migration to the new hosting environment is completed safely. My approach will include: • Full codebase audit to identify deprecated PHP 5.6 functions, outdated libraries, and compatibility issues • Refactoring legacy code for PHP 8+ compatibility while maintaining existing behaviour • Testing database queries, forms, sessions, APIs, and frontend functionality after refactoring • Fixing template-level issues affecting email and SMS gateway execution • Reconfiguring and validating all transactional email and SMS workflows on the new server • Migrating the website to the new hosting environment with minimal downtime • Regression testing across key pages, forms, and user flows before final domain switch I have experience upgrading legacy PHP applications, resolving deprecated function conflicts, and stabilising third-party gateway integrations during server migrations. Estimated Timeline: Depending on the codebase complexity, migration, compatibility fixes, and testing can typically be completed within a few days after access review. I am ready to start once server access and gateway credentials are shared. Thanks
₹7,000 INR in 3 days
8.1
8.1

Hi, I can upgrade your existing PHP 5.6 application to PHP 8+ while preserving current functionality and improving stability, speed, and security. My approach includes creating a staging environment, auditing deprecated functions/libraries, refactoring incompatible code (mysql_* calls, old constructors, deprecated syntax, template conflicts, etc.), and regression testing all forms, database actions, and workflows. I’ll also reconfigure and fully test your email/SMS gateways on the new server, migrate the application to the new hosting environment, update DNS/domain routing, and verify successful transactional delivery after launch. Estimated timeline: 5–7 days including migration, testing, and go-live support.
₹5,000 INR in 7 days
7.5
7.5

With over 10 years of experience in PHP development with a focus on legacy code migration, I am confident that I am the right fit for your project. My team and I are well-versed in PHP5.6 to 8+ upgrade and have extensive experience working with complex systems like yours, as evidenced by our proven track record on various similar projects. We guarantee to deliver an upgraded codebase that preserves all existing functionality while ensuring compatibility and improved performance with newer versions of PHP. Our methodical process includes a comprehensive code review to identify and resolve all deprecated functions and library conflicts to make your application error-free on the new hosting server. Each step we undertake is backed by transparent reporting and open lines of communication with you, helping us ensure we meet your requirements promptly. Moreover, we are ISO 9001:2008 Certified, signifying our commitment to quality service. Furthermore, as a company, we believe in long-lasting business relationships. This means that our work does not end after the migration and refactor. We provide continued support post the completion of the project, ensuring any issues or bugs are quickly addressed without any additional cost to you. Choose us for timely delivery, high-quality work, and peace of mind even after the project is done!
₹7,000 INR in 7 days
7.3
7.3

As a seasoned Full-Stack Developer with over a decade of experience, your project is right up my alley. I'm proficient in PHP and have a profound understanding of MySQL - two key skills in upgrading and migrating platforms as complex as yours. My mantra of 'clean code, clear communication, on-time delivery,' aligns perfectly with your needs. To bring your site up-to-date, I'll first carefully refactor the code to ensure compatibility with PHP 8+. As we both value functionality, my focus will be on eliminating deprecated calls and library conflicts, while preserving all existing features. After this overhaul, I'll meticulously configure and test the email/SMS gateway scripts to guarantee smooth operations.
₹7,000 INR in 7 days
7.1
7.1

Hi I have gone through the requirements. Good experience in creating custom web applications using PHP. Will do this php 5.6 to 8.x job. I'm available to start now. Please contact for further discussions. Regards, Mohan
₹3,500 INR in 2 days
6.3
6.3

With over a decade of experience in web development, including expertise in PHP, Codeigniter, HTML, and MySQL, I am confident in my ability to handle your PHP 5.6 upgrade and migration project effectively. My team at Pari Technology is equipped with the necessary skills to refactor your codebase for PHP 8+ compatibility and ensure the email/SMS gateway scripts work seamlessly post-refactor. We'll also conduct thorough testing to verify that all transactional messages are successfully sent from the new host. As an IT services company, we provide end-to-end solutions including web and mobile development which includes migrating websites to fresh hosting environments without compromising any existing functionalities. We understand the importance of maintaining stability throughout upgrades and mitigating against any template-level issues that might arise with such transitions. I can assure you of timely delivery, clear communication, and full compliance with your outlined requirements. Additionally, as a registered IT company with a 100% client satisfaction rate, long-term support and maintenance are always available should you need it after the project is completed. I look forward to discussing our proposed approach, anticipated timeframe, as well as any additional details you may require about our methodology and capabilities that could assist in facilitating your decision-making process. DSK
₹7,000 INR in 9 days
6.4
6.4

Hi i am php developer i can upgrade your site i can start work right now and finish asap wiating for positive response regards
₹7,000 INR in 1 day
5.8
5.8

Hello Client, I have expertise in migrade code from php 5.6 version to 8. I have done lot of website migrate version from older version to new version. Kindly share me both server details. I will do it and let you know. Note: I will code and give you final cost of migration. Regards, Manish
₹4,000 INR in 2 days
5.8
5.8

Hello, I’ve reviewed your project. Upgrading a PHP 5.6 legacy system to PHP 8+ while preserving full functionality and fixing broken email/SMS gateways is exactly the kind of migration work where careful refactoring matters more than a rewrite. I can handle this end-to-end: Upgrade PHP 5.6 → PHP 8+ compatibility Refactor deprecated functions (mysql_*, each(), create_function, etc.) Fix broken email/SMS gateway triggers after migration Resolve library and session handling conflicts Move site to new hosting (cPanel/SSH setup) Full domain pointing + SSL setup End-to-end regression testing on all forms and transactions My approach: Clone current site to staging environment Run compatibility scan for deprecated PHP functions + error logs Refactor step-by-step (not full rewrite) to preserve behavior Fix email/SMS gateway integration after PHP upgrade Test all forms, DB calls, and transactional flows Deploy to new server + DNS switch Final validation across all critical pages A key point: I will first stabilize the gateway issue in staging before moving production so you don’t lose any transactional messaging during migration. A few quick questions: Are the email/SMS gateways using SMTP/API or custom PHP scripts? Do you currently have any framework (or is it pure custom PHP)? Any cron jobs or background scripts involved in messaging? Estimated timeline: 3–5 days depending on code complexity. I can start immediately after access is provided. Thanks, Abhishek
₹7,000 INR in 7 days
5.1
5.1

Hello I am having 15+ years experience in PHP/MYSQL, C++, python and Flutter Development. I can help you to do this task very quickly. Thanks Venkateswaran
₹7,000 INR in 7 days
5.3
5.3

With an extensive background in web development for over 9+ years, I'm not only familiar with PHP, PHP5, MVC, and MySQL—but also proficient with the latest stable PHP release and have hands-on experience with migrations! I'll carefully refactor your codebase for PHP 8+ compatibility while preserving your existing site's full functionality. My approach focuses on identifying and eliminating deprecated calls and library conflicts to ensure that every page, form, and database interaction works just as it does now—only faster and more secure. Once the code is refactored, my expertise in HTML and PHP will ensure that I configure your email/SMS gateway scripts flawlessly and effectively. As a dedicated professional, I understand the importance of deadlines so you can count on me to complete the migration, regression testing, and launch within the agreed timeframe. Moreover, beyond just getting this critical project done properly, engaging my services means benefiting from cost-effective solutions and receiving free after-delivery support for three months. Additionally, I've got you covered with hosting and domain offers that are not only cheap but well managed. Trust me to turn your ideas into reality with utmost efficiency. Let's get started!
₹15,000 INR in 7 days
5.4
5.4

Hi, I would like to grab this opportunity and will work till you get 100% satisfied with my work. I just applied after read your job posting carefully and I believe that I am good fit to your project. I'm a serious bidder. I will satisfy you with my high skills! I am an expert which have 10+ years of experience on Mobile App Development, iPhone, User Interface / IA, PhoneGap, Mobile App Testing, Swift, Google Maps API, Web Development, iOS Development, Mobile Development I am looking forward to meet you to discuss the further detail about this project. Looking forward to hearing from you. Warm Regards
₹10,000 INR in 3 days
5.2
5.2

Hi there.. I'm a personal freelancer and interested to colaboration with you to update your web application compatibility from version 5.6 into PHP 8.x.. and also rewrite / refactor some deprecated code to standardize after migrating the PHP version especially for mysql connection.. should be update to mysqli connection and including performance.. speed.. reliability and backward compatibly all function and feature.. and several projects that I have worked on like this case are below.. and everything went well.. and here is the completed project related upgrade PHP version : - https://www.freelancer.com/projects/php/PHP-Upgrade-Retaining-Existing-Features/reviews - https://www.freelancer.com/projects/php/Convert-mysql-database-query-mysqli/reviews - https://www.freelancer.com/projects/html/Convert-SamPHPweb-SAM-Broadcaster-script/reviews Looking forward to discuss more about the project via chat and collaborating with you! Thank you, Vincent
₹8,500 INR in 2 days
5.5
5.5

Hi, PHP 5.6 to 8+ migrations with broken gateway scripts are exactly what I've been solving for 10+ years — your site's email/SMS issues are almost certainly deprecated function conflicts I can pinpoint within the first few hours of audit. My approach: I'll run a full compatibility scan (php8cc + manual review), refactor deprecated calls and library conflicts, rebuild and test your email/SMS gateway scripts in isolation, then mirror the cleaned codebase to the new server, configure the environment, and do end-to-end regression testing before flipping the domain — zero downtime cutover. I'll provide a detailed report of every change made so you know exactly what was fixed and why. Ready to start immediately once you share cPanel/SSH access. Want to kick off with a quick call or should I begin straight with the audit?
₹7,000 INR in 7 days
4.9
4.9

Hi there, Greetings❤️ I have read your project details that you need PHP 5.6 Upgrade & Migration. Can we talk regarding this project and thanks for the details and clear instructions. Much appreciated. I am a India based web developer designer / graphic designer and have 13+ year's of hands-on experience in efficiently coding websites and applications using html, Laravel, Codeigniter, PHP MySQL, WordPress, Magento / Laravel , WooCommerce, Custom WordPress Plugins and Themes Development, Modifying WordPress Core, WordPress Hooks, Shortcodes, Metadata, Custom Post Types, and Taxonomies, etc I am available 24 hours support. I am available for the weekend also. If you are looking for website design and custom software development services then I am the right person for you. I’m open to discussing the budget and timeline that works best for you. Looking forward to hearing from you soon. Best regards, Arpan Bhardwaj
₹7,500 INR in 3 days
5.0
5.0

Hi, I am a PHP developer having 11 years of experience. I have upgraded hundreds of websites to latest PHP version. I checked the website. I will: 1. Refactor the code. 2. Configure and test email/SMS scripts. 3. move the website to new hosting and point to current domain. 4. Verify the transactional email and SMS. The deprecated functions will be updated. But, I have to look at the codebase first. I will need a staging environment. Which hosting provider you want to use? I think we should move the website to new hosting provider's staging server. Then after completion, we publish it. thanks
₹8,000 INR in 6 days
4.4
4.4

Hello, I have strong experience upgrading legacy PHP applications from PHP 5.x to PHP 8+ while preserving existing business logic, third-party integrations, and database functionality. My approach would begin with creating a staging copy on the new server, enabling full PHP error reporting, and auditing the codebase for deprecated functions, outdated libraries, incompatible database calls, and template-level issues affecting your email/SMS gateways. I’ll systematically refactor the application for PHP 8 compatibility, test all forms and transactional flows, then verify gateway delivery from the new hosting environment. After regression testing, I’ll migrate the finalized build, configure DNS/domain pointing, and perform launch validation to ensure all pages, forms, email notifications, and SMS triggers function correctly. You’ll also receive a concise technical summary covering the issues discovered, changes made, server configuration updates, and deployment steps. Depending on the codebase size and third-party dependencies, the full migration, testing, and launch process would typically take around 5–10 days.
₹12,500 INR in 7 days
4.0
4.0

When it comes to PHP upgrades and migrations, our extensive experience in database management, HTML, and PHP will be an asset to your project. At Paper Perfect, we have successfully upgraded numerous sites to the newest stable PHP versions, always ensuring that all functionality, even the most intricate details like transactions and gateways, remain intact. Our team has a keen eye for identifying deprecated calls and library conflicts that could hamper site performance, so you can trust us to deliver a PHP 8+ compatible solution for your business. Additionally, we are no strangers to dealing with transactional messaging systems like email and SMS gateways. Your site's email/SMS gateway scripts will be thoroughly configured and tested post-refactor to ensure smooth communication flow from your new hosting environment. We'll leave no stone unturned until every transactional message successfully sends from the new host. Our dedication to quality extends beyond getting the job done; we're also committed to timely delivery. Anticipating each stage of migration, regression testing, and launch meticulously , we aim to complete the project within the shortest feasible timeframe possible without sacrificing quality. Reach out to us at Paper Perfect; let's take your platform to new heights together!
₹7,000 INR in 7 days
3.7
3.7

As a seasoned DevOps professional with a solid grasp on Linux and PHP, I'll seamlessly upgrade your website to the newest PHP release, ensuring there are no glitches or deprecated functionality. Leveraging my fine-tuned knowledge in server management, cloud deployment, and SSL security, your website will not only be faster but also more secure than ever. My approach involves thoroughly analyzing your existing codebase to refactor it for PHP 8+ compatibility. This critical step ensures that the entire system undergoes a comprehensive clean-up process. I'll pay special attention to eliminate any template-level problems that have been affecting your email and SMS gateways' performance. After migrating the code and verifying its integrity, I'll configure and test the email/SMS gateway scripts meticulously to ensure seamless transmission of transactional messages. With my skills, AWS or DigitalOcean deployment will be a breeze while preserving every existing form, page, and database interaction on the site. Get ready to witness automated infrastructure deployed with utmost perfection!
₹5,000 INR in 7 days
2.4
2.4

✨ I can upgrade your PHP 5.6 site to PHP 8 plus, migrate it to the new hosting, and make sure the email and SMS gateway flow works properly after the move. I would first take a full backup, set up the site safely on a staging copy, then scan the codebase for deprecated PHP functions, old CodeIgniter or library conflicts, database issues, and template level problems affecting the gateway scripts. After fixing compatibility issues, I will test every page, form, database action, email trigger, and SMS trigger before moving the final build to the new server. Since the live functionality must stay the same, I will focus on a careful upgrade rather than random rewriting. Once the new hosting is ready, I can point the domain, verify the site on desktop and mobile, and give you a short note showing what was changed and how the gateway issue was fixed. Please share old and new server access, gateway details, and any forms where email or SMS currently fails, and I can start with a clean migration plan. ✨ Best regards Ankit
₹7,000 INR in 7 days
2.5
2.5

India
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