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My business site is still running on an older PHP stack and out-of-date plugins. I need the entire installation brought up to PHP 8.1 and every plugin upgraded to their newest stable releases, while keeping the site fully functional throughout the process. Because I’m not certain whether previous developers added any custom plugins or code tweaks, I’ll need you to audit the installation first, flag anything non-standard, and confirm compatibility before we switch versions. If adjustments or light refactoring are required to make custom code work on PHP 8.1, please include that in the scope. Deliverables • Audit report listing core, theme, and plugin versions, plus any custom elements discovered • Clean backup created before you touch anything • Successful migration to PHP 8.1 on my hosting environment • All plugins and the theme updated to their latest stable versions • Post-upgrade testing confirming that every public-facing page and admin function works as expected • Short hand-off notes summarising changes and any future maintenance recommendations I can provide full cPanel/FTP and WordPress admin access. Ideally you have solid experience upgrading WordPress (or similar PHP CMS) sites to PHP 8+, troubleshooting compatibility issues, and rolling out updates with zero downtime. Let me know your estimated timeline and any questions you need answered before getting started.
Project ID: 40662410
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218 freelancers are bidding on average $30 USD for this job

Hi there, I understand you need to upgrade your website from older PHP versions and outdated plugins to PHP 8.1 with all plugins updated to latest stable releases while maintaining full functionality. My approach includes: 1. Comprehensive audit of current PHP version, plugin statuses, and database compatibility 2. Complete backup of all files and database before any changes 3. Step-by-step migration to PHP 8.1 with thorough testing at each stage 4. Upgrading all plugins to their latest stable versions 5. Testing all website features including forms, menus, and custom functionalities 6. Performance optimization and security hardening I'll work within your cPanel environment ensuring zero downtime during the transition. All changes will be carefully documented and tested to guarantee seamless operation post-upgrade. Best Regards, Khorshed Alam, RS Software
$20 USD in 2 days
9.6
9.6

Hello, As an experienced web developer and founder of A4Logic, I have the skills and expertise that you are looking for to upgrade your business site. With over 15 years in this field, particularly specializing in WordPress (PHP), I have successfully worked on numerous projects involving upgrading sites to new versions like PHP 8. My clients appreciate my devotion to quality, clear communication and long-term support in every project I undertake. In addition, I have substantial knowledge of APIs and third-party integrations which will be valuable in updating all your plugins to their latest stable releases. Should there be any custom code tweaks or plugins on your site, rest assured that my meticulous nature will not miss out on any crucial details as I'll conduct a thorough audit before making any changes to ascertain compatibility. Furthermore, my expertise extends beyond just updating websites; I am also proficient in MySQL, PostgreSQL, cloud deployment, forge a unique skill combination that will enhance the full functionality of your site during and after the updates. Given your trust with cPanel/FTP and WordPress admin access, I assure you that your project will be in safe hands. Let's get started and build something great together! Thanks!
$30 USD in 1 day
8.6
8.6

With over a decade of professional experience, I am confident that my skills make me an excellent candidate for your project. My expertise lies in a wide range of domains including PHP, MySQL, cPanel, and WordPress - all of which align perfectly with your needs. I have a proven track record of seamlessly migrating and upgrading websites to newer versions without a single glitch. Considering the complexity surrounding compatibility issues, I will be meticulous in auditing your site's custom elements before beginning the process of upgrading to PHP 8.1 and installing the latest plugin versions. As enhancements may be required to adapt any custom code for the new stack, you can rely on my ability to refactor well-crafted solutions with no compromise on functionality or security. In addition to this project-specific skill set, my comprehensive understanding of website development extends beyond mere updates - I've dedicated myself to ensuring sites are constantly optimized and secure through regular maintenance, backups and troubleshooting. Ultimately, my goal is to deliver both a technically upgraded site for your business as well as peace of mind knowing that future maintenance is handled in capable hands. Let's discuss timelines and address any clarifications you may have; I'm confident we can hit the ground running and deliver excellent results together!
$30 USD in 1 day
8.2
8.2

Hello, I can see the real risk here isn’t just “updating PHP” , it’s avoiding the hidden breakage that older custom code, plugins, and theme tweaks can cause during the move to PHP 8.1. I’ve handled WordPress and PHP upgrade work where the first step is always a compatibility audit, then a safe backup, then staged updates with verification so the site stays stable. I’ll review the installation for core, theme, plugins, and any non-standard custom code, then map what needs adjustment before switching the runtime. After that, I’ll update everything to current stable releases, test public pages and admin functions, and share short hand-off notes with maintenance guidance. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Before starting, I’d like to confirm whether you have any staging environment, and whether any custom plugins or child-theme changes were added by previous developers. Do you have a staging copy available, and were any custom plugins, child theme edits, or hard-coded tweaks added by previous developers? Looking forward to your reply so we can finalize the exact plan. Best regards, Asad
$30 USD in 3 days
8.4
8.4

Hi, I can safely upgrade your website to PHP 8.1 and update all plugins/theme to their latest stable versions. I’ll first audit the site for custom code and compatibility issues, create a complete backup, perform the upgrade, and thoroughly test both frontend and admin functionality. I’ll also fix any PHP 8.1 compatibility issues found and provide a brief handover report with maintenance recommendations. I can start immediately and complete this efficiently with minimal downtime. Best regards RAHEEL
$20 USD in 7 days
8.1
8.1

Hi, I can safely upgrade your existing WordPress installation to PHP 8.1 and bring the plugins/theme up to their latest stable compatible versions without unnecessarily disrupting the live website. Because you’re unsure whether previous developers added custom code, I agree that the audit should come first rather than immediately changing the PHP version. Deliverables You’ll receive: Pre-upgrade audit summary Backup created before changes PHP 8.1 migration Updated plugins/theme Custom compatibility fixes where required Post-upgrade testing Short handover report Recommendations for future maintenance I’ll prioritize safe staged changes and rollback capability rather than rushing the upgrade directly on the live installation. Best regards. ADEEL
$20 USD in 7 days
8.2
8.2

Hi There I just read your project details regarding the Project: Full Website PHP & Plugin Upgrade Can we do a quick chat right now so that we can discuss the project briefly? I have 10 years of experience in PHP, WordPress, Woocommerce, Cake Php, Codeigniter, Magento, Shopify, Laravel, Adobe Photoshop, Adobe Illustrator, CorelDRAW, Bootstrap, HTML, CSS, Angular, Javascript, jQuery, and My SQL. I appreciate Muhammad Rizwan Atif
$20 USD in 1 day
8.3
8.3

Hi, I will conduct a thorough audit of your website's installation to identify any custom plugins or code tweaks, ensuring compatibility with PHP 8.1. The deliverables will include an audit report, a clean backup, successful migration, plugin and theme updates, post-upgrade testing, and hand-off notes. Let's discuss further to ensure a seamless upgrade process. Regards, Sai Bhaskar
$30 USD in 1 day
7.9
7.9

The right way to do a PHP 8.1 jump when custom code might be lurking is to never test it on the live site — so I'd clone your site to a staging copy first and do the entire upgrade and compatibility work there, with your live site untouched until everything's confirmed, which is how we get zero downtime. I'd start with the audit: catalogue core, theme and plugin versions, then scan the codebase for the things that actually break on PHP 8.1 — removed functions, curly-brace array access, each(), and passing null where strings are expected — and flag any non-standard plugins or developer tweaks. Then a clean full backup, upgrade plugins and theme one at a time checking after each, refactor any custom code as needed, and switch the PHP version. I test every public page and admin function on staging before pushing live. One thing I always watch: if any plugin folder is symlinked to custom source, I never force-reinstall it. You get the audit report and hand-off notes. Send cPanel and WordPress access and I can start the audit right away.
$10 USD in 1 day
7.8
7.8

Hello, I can safely upgrade your WordPress installation to PHP 8.1 with a compatibility-first approach, minimizing risk and avoiding unnecessary downtime. I’ve handled WordPress/PHP upgrades involving outdated plugins, themes, custom code, and legacy configurations. I’ll first audit the core, theme, plugins, PHP configuration, and custom modifications, then provide a clear compatibility report. Before any changes, I’ll create and verify a full rollback backup. After staging/testing where possible, I’ll upgrade PHP, WordPress components, and plugins, refactor PHP 8.1-incompatible custom code if required, and run functional checks across frontend and admin areas. I’ll also provide concise hand-off notes and maintenance recommendations. Q1. Do you have a staging environment available on the hosting? Q2. Are there any critical integrations (payment, CRM, API, email) requiring specific testing? Please open the chat and share the current environment details; I can review the setup and confirm a realistic timeline before starting. kind regards, Sunil K.
$20 USD in 2 days
7.9
7.9

Hi, I can audit your site and ensure PHP 8.1 compatibility using a staging environment. I will refactor custom code, update all plugins, and deliver a fully functional, backed-up WordPress dashboard. My portfolio: work.ajharul.com. Let's discuss!
$20 USD in 7 days
7.7
7.7

Hi, I can audit your WordPress setup, create a full backup, upgrade PHP to 8.1 and safely update the theme/plugins while fixing any compatibility issues. I can start immediately and provide a clear handover report after testing.
$24 USD in 1 day
7.5
7.5

Hi, I can handle the PHP 8.1 upgrade and WordPress update safely without treating it as a simple “change PHP version and update plugins” job. I’ll first audit the installation to identify the current WordPress, theme and plugin versions, custom plugins, modified theme files, custom PHP snippets, and other non-standard code. I’ll create a complete backup before making any changes and check compatibility with PHP 8.1. I’ll then update the theme and plugins to stable versions and address PHP compatibility issues such as deprecated functions, incompatible code, and plugin/theme conflicts. Where custom code requires light refactoring, I’ll fix it while preserving the existing functionality. I’ll test the site before and after the PHP switch, including public pages, forms, important functionality and the WordPress admin. I’ll also check for PHP errors and plugin conflicts after the upgrade rather than assuming everything is fine because the homepage loads. The goal is a clean PHP 8.1 environment with current stable components and no unexpected functionality loss. I’ll provide the audit findings and a concise hand-off summary with the changes made and any future maintenance recommendations. I specialize in WordPress troubleshooting, PHP upgrades, plugin conflicts, custom-code fixes and safe website maintenance. Ali Asif
$28 USD in 1 day
7.7
7.7

Hi there! i will help in Full Website PHP & Plugin Upgrade to latest version. With over 15 years of experience in building and maintaining websites, I bring a high level of expertise to the table. I,m highly organized, detail-oriented, and consistently meet deadlines. If you choose to work with me, Id be thrilled to discuss the details further and get started immediately. Thank you for considering me. I look forward to the opportunity. thanks
$25 USD in 3 days
7.7
7.7

Hello, With over 7 years of experience as a senior engineer, I possess the necessary technical skills and expertise to bring your business site up to speed. Familiarity with PHP 8.1 and WP has been an integral part of my professional repertoire, and I strictly adhere to ensuring absolute functionality throughout the entire upgrade process. One thing that sets me apart is my meticulous approach to projects. Understanding the importance of your site's custom code tweaks, I'll proactively audit every aspect of your installation, flagging any non-standard elements before we proceed. Additionally, if adjustments need to be made for compatibility and optimal performance under PHP 8.1, I'm more than prepared for such customizations. Moreover, I understand the value of comprehensive documentation and post-migration support. In order to make future maintenance smoother, I'll provide you with detailed summary notes highlighting any significant changes made. Rest assured, I won't leave you hanging after the handover; my commitment is not just delivering a successful migration on time but also ensuring you're satisfied with it in the long run. In all, my extensive experience alongside my emphasis on thoroughness makes me confident that I can complete this project effectively and efficiently while providing informative updates along the way. Choosing me for this task means choosing a freelancer who values professionalism and client satisfaction above all else! Thanks!
$25 USD in 2 days
7.2
7.2

As a Full-Stack software engineer with over 10 years of experience, I am confident in my ability to handle your PHP and plugin upgrade project swiftly and efficiently. I have a deep understanding of web hosting, website development, and solid expertise in HTML, MySQL, and PHP. I’ve successfully upgraded various websites (including WordPress) to PHP 8+ versions - ensuring zero downtime. Moreover, it’s crucial to comprehend the compatibility challenges that may come with upgrading a website. Here is where I stand out! My proficiency in Agile methodologies enables me to efficiently audit your installation, ensuring the compatibility and functionality of every core, theme, and plugin element. If any non-standard features or code tweaks are identified during my audit process, you can expect seamless adjustments and refactoring from me. Finally, choosing me means feeling at ease throughout the project. From daily communication and providing comprehensive documentation to offering free technical support for all post-deployment eventualities; my goal is your success! Let's make your site robustly functional behind the scenes by leveraging my vast skill set. Allow me to transform your current website pain into future-proofed digital bliss!
$20 USD in 7 days
7.3
7.3

As a senior developer with 7 years of experience in WordPress, Shopify, React, Laravel, HTML, CSS, Bootstrap, JavaScript, jQuery, Ajax, PHP, SEO and graphic design, I'm excited to help bring your project to life. Let's begin with a conversation. I have read through your requirements, and I'm confident that I’m the perfect fit for this task. My goal is to deliver work that exceeds your expectations. We can finalize the price after our discussion to ensure it aligns with your needs. Let's get started!
$20 USD in 1 day
7.4
7.4

Hi, I can handle this WordPress/PHP upgrade safely and efficiently. With 16+ years of experience in WordPress and PHP-based CMS development, I’m experienced in auditing legacy sites, identifying custom code, resolving PHP compatibility issues, and performing upgrades with minimal downtime. I’ll first create a full backup and audit the core, theme, plugins, and custom code, then upgrade everything to PHP 8.1 and the latest stable versions. I’ll thoroughly test both the frontend and WordPress admin afterward to ensure everything continues working correctly. I can get started immediately and provide a clear timeline after reviewing the site. Looking forward to working with you. Best regards, Tinh
$25 USD in 1 day
7.5
7.5

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 :)
$20 USD in 1 day
7.0
7.0

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. I believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.
$200 USD in 7 days
7.0
7.0

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