Callback api working php google checkout jobs

I'm looking for a developer who is well versed in API apps, Claude AI's API, and deploying chatbots on Wordpress websites. I have a comprehensive set of rules that work as a prompt in Claude to turn it into a game. The game functions well in Claude's environment, but I need it to be playable on the web. Possibly with ad serving capabilities so users can play for free Key Features: - Chatbot with (my already created) custom instructions, capable of having a back and forth conversation with users - ads or login feature for paid users in order to monetize Ideal Candidate: - Proficiency in using Claude API and Wordpress platform - Previous experience in building chatbots or chatbot games

Google app script expert needed for stock price and data for world wide countries. Basically we have done for few countries we need you to replicate for more different countries, each country will consists about 8 google sheet types and some types may have dozen or up to few hundreds google sheets. Then some of the data needs be transferred and stored to SQL and taken from SQL by API also. This is team work, you will be working with bunch of server guys and python guys. So you need to possess these abilities and criteria : 1. Able to make google sheets fast, make editor for the GS fast and send all of the Google sheets ownership to me. 2. Able to work on SQL and API. 3. Able to collaborate as a team. 4. Agile, fast delivery, and re...

I am in need of a talented PHP developer with solid experience in integrating SMTP email with Outlook. The project's main objective is to enhance our mailing system, making it more user-friendly and effective. Key Project Requirements: - Implementing the ability to send email notifications from our system through Outlook. - Enabling tracking of email delivery status, ensuring transparency in our communication process. - Developing a user-friendly way to manage email templates, specifically focusing on basic text formatting like bold or italics. Ideal Skills and Experience: - Proficiency in PHP development. - Prior experience with integrating SMTP email, particularly using Outlook. - Strong understanding of email delivery tracking. - Ability to create a simplistic yet ...

I'm in need of an experienced developer to implement crucial updates to my Accuster Support App. Updates include: - Backend Functionality: A change in the current system that will affect the way links are processed. You must have experience in link redirection and the ability to redirect links to external websites. The ideal candidate should intimately understand API integrations as well as the intricacies of database structures. Strong experience in user authentication is equally crucial to succeed in this role.

...marketplace app that will have a range of features to make it user-friendly for both buyers and sellers. Key Features: - User registration and login, Search functionality, Listing creation and management - 24-7 Ai agents support, API integrations from multiple service providers - In app purchases, Context aware AI agents for tasks API Integrations: - Price comparison, GPS and mapping services - vehicle search API, Third party services for warranties and ancillary products - AI Tools like and SalesGPT for handling inbound and outbound calls - API integrations to the CRM/back office we decide on Primary Objectives: - Enhance user experience - Improve efficiency in managing listings and leads - Act as intermediary between dealership and user to enable buye...

We have setup an XML feed custom made + Merchant center but the products never appear when we expect them to for names of products for example, need someone to look through and find out the issue

My WordPress website is experiencing indexing issues with product pages on Google. I have updated some content recently but there have been no major structural changes. I need someone to assist in identifying the root cause of these indexing issues, and propose and implement a solution that can get these product pages indexed. Key Responsibilities: - Diagnose the specific reasons for the indexing errors. - Implement best practices to ensure these pages are properly indexed. - Provide guidance on preventing similar issues in the future. Ideal Skills: - Proficiency in WordPress and knowledge of SEO best practices. - Experience in debugging and resolving Google Indexing Errors. - Excellent communication skills.

...the configuration of API usage parameters, such as headers and HTTP method (GET or POST), and the selection of data to send as filters, such as by name, identification number, or both, similar to the functionality of Postman for configuring requests on endpoints. This form should enable the creation of multiple API configurations for consumption. The initial response must be mapped with a list of preset fields and then generate a new response with the mapped information to standardize the response from all external sources to be configured. The results will be displayed independently in each API connector created in a table viewer as it comes from the source to perform mapping within the detail of the record. Simultaneous connection with all configured and active ...

I'm looking for an experienced PHP developer to help me create a dynamic and functional website. While I haven't clarified the project details such as the purpose and design preferences, I would ideally like the following: - User registration and login system - Online payment integration - CMS for easy content management Your experience working on similar projects and with PHP is essential. Please bid if you are confident in your ability to deliver a high-quality, dynamic website meeting these criteria.

I'm currently facing an issue with product syncing between my Shopify store and Google Merchant Center. I need a professional to ensure that all my products are correctly listed on Google Merchant Center. This includes checking for any discrepancies in product details and making sure they are accurately synced between the two platforms. The ideal freelancer for this job should have: - Proficient experience with Shopify and Google Merchant Center - Expertise in product syncing and troubleshooting - Strong attention to detail to ensure all product details are accurately reflected in Google Merchant Center - Good communication skills to provide updates on the progress and any issues encountered while resolving the syncing problem.

I am in need of a talented developer who can create a program for me. This program will enable me to connect with social media feeds, specifically from Facebook, Twitter, and Instagram. Key Features: - Real-ti...present me with analytics surrounding the feeds, specifically engagement metrics. Data Extraction: - The program should be able to extract and present: - Post content: The text, images, videos, or other forms of content from the feed. - Engagement metrics: Information regarding the engagement of the content (likes, comments, shares, etc.) Ideally, you should have experience in social media API integration and data extraction. Knowledge of real-time application development is a plus. Please provide examples of previous projects you've worked on that are s...

...the configuration of API usage parameters, such as headers and HTTP method (GET or POST), and the selection of data to send as filters, such as by name, identification number, or both, similar to the functionality of Postman for configuring requests on endpoints. This form should enable the creation of multiple API configurations for consumption. The initial response must be mapped with a list of preset fields and then generate a new response with the mapped information to standardize the response from all external sources to be configured. The results will be displayed independently in each API connector created in a table viewer as it comes from the source to perform mapping within the detail of the record. Simultaneous connection with all configured and active ...

I'm seeking an experienced developer with deep knowledge of LiteSpeed Web ADC and its API and especially someone who knows the difference between LiteSpeed Web ADC (which is a Load Balancing) and LiteSpeed Web Server (which is a Web Server). I would like to use API for LiteSpeed Web ADC to create users, settings, setting backend to manage LiteSpeed Web ADC using an external control panel made by me with PHP. I just need to implement LiteSpeed Web ADC. HTTP REST API are OK. Is it possible to use LiteSpeed Web ADC for this or is it better to use it with cPanel API? Thanks

...and Content Restriction: Depending on their membership level, users should have access to different sections of the site, with content being restricted accordingly. - API Integration: I currently do not have an API set up for accessing data from WebFlow's MySQL. This will need to be implemented on the WebFlow side. - Data Import: I'm looking to import specific data from the API into the WebFlow site. This includes membership level information and orders submitted. Ideal candidates for this project should have: - Proficiency in WebFlow and a strong portfolio demonstrating membership system integration - Experience working with API integrations, especially those involving WebFlow's MySQL - A keen eye for detail and the ability to ensure a...

I need an experienced PHP developer to help with customizing a PHP script. The specific details of the modifications are: - User Authentication: Implement an effective user authentication system. - Database Integration: Ensure seamless integration with our existing database. - UI/UX Enhancements: Enhance the user interface and user experience of the script. Please note that the specific PHP script has not been disclosed, and further details regarding the script's functionalities have not been provided. The successful freelancer will need to be able to navigate and modify PHP scripts efficiently and have a good understanding of user authentication, database integration, and UI/UX principles. Your expertise in PHP and familiarity with various scrip...

I'm in immediate need of an expert on Identity and Access Management (IAM) configuration and validation. Specifically, the project involves: - Forgerock Identity Cloud configuration and validation ...PingOne Advance Cloud configuration and validation - Azure AD configuration and validation Furthermore, I need assistance with various IAM protocols and technologies including but not limited to: - SAML (Security Assertion Markup Language) - OIDC (OpenID Connect) - Federation Additionally, the ideal freelancer should be capable of troubleshooting during outages plus be proficient in Postman API Call Testing and Validation. Experience of the above is a must, given the urgency of the project. Please only bid if you are able to begin immediately and complete the project as so...

I have built an Android app in Android Studio (Iguana) but I cannot figure out how to upload it to the Google Play store. Hence, I am seeking a qualified freelancer to provide a 1-hour virtual tutorial explaining the app submission process. I want to be on VTC and share my screen while someone guides me through the process. This tutorial should primarily focus on: - The process of submitting an app to the store. - Understanding the app store's guidelines. - Tips on app signing and security. Upon successful completion of the class, an opportunity to build additional apps may arise. Remember, the ideal freelancer should have verifiable experience in Android app development, app store submissions and previous training/tutoring experience may be an advantage. One additional note...

I need an experienced React JS developer to help me solve two key issues with my current project. Key Issues: - Rendering Problem: Some components in my current project are not rendering correctly. - Data Handling Issue: I'm facing challenges with the data handling module, and it's...Experience with handling data issues and rendering problems within React projects. I will also appreciate any additional insights or suggestions you may have for improving the project. Please note I will not be considering applications that do not include examples of past work. Optional - Third-Party Services: The project may require some integration with third-party services. This could include API services and authentication services. Please let me know if you have experience in integr...

...an online store that's focused on selling physical goods. Ideal Skills & Experience: - Proficient in Shopify Store Development - Experience in setting up online stores that sell physical goods - Knowledge of eCommerce best practices, particularly for conversion-focused site design - Familiarity with effective product categorization and inventory management The store should have: - A seamless checkout experience - A user-friendly interface that encourages conversions - Integration of product customization features for a personalized shopping experience - Efficient inventory management system that ensures stock availability and prevents overselling - A customer review section, to build trust and facilitate social proof Your expertise in Shopify customization, eCommerc...

Hi SATNAM WEBTECH, I noticed your profile and would like to offer you my project. We can discuss any details over chat.

I'm looking for a skilled developer to create a FrontEnd PPT viewer and editor that can be integrated with an API for PPTX files. The viewer and editor should have: - Intermediate compatibility with different versions of PowerPoint, giving users the ability to edit and perform basic formatting. - Real-time collaboration feature, allowing multiple users to edit the same document simultaneously. This should be done in an efficient and secure manner. The ideal freelancer for this job would have experience in developing similar applications, and proficiency in: - FrontEnd development - Real-time functionality integration - API integration The project timeline is flexible.

I'm looking for a professional mobile app developer who can create a robust e-commerce application similar to Fashion Nova. The app is intended to be developed for both iOS and Android platforms, with an additional web app component. Key Features: - User Registration and Login - Product Browsing and Search - Shopping Cart and Checkout - Vendor Page - Order Tracking - Admin Panel - Dynamic Backend Analytics - Personalization - In-App Chat for Customer Service I am not looking for specific design or branding requirements at this stage. I'm particularly interested in your experience with e-commerce app development, as well as any unique features or functionalities you can suggest to enhance the user experience. Please provide any relevant examples from your portfolio.

Hi Encoder IT Limited, I noticed your profile and would like to offer you my project. We can discuss any details over chat.

...freelancer to effectively manage a Google Shopping campaign aimed at promoting my electronics and home appliances. Key Responsibilities: - Develop and set up a Google Shopping campaign for the specified products. - Regularly monitor and optimize the campaign for maximum ROI and exposure. - Implement strategies to drive traffic and sales. Ideal Skills and Experience: - Extensive experience in Google Shopping campaign management, particularly in the electronics and home appliances sector. - Proficiency in targeting and retargeting strategies on Google Shopping. - Strong analytical skills to interpret campaign data and optimize accordingly. - Good understanding of SEO and keyword targeting to effectively reach all genders. - Proven track record of successful ...

I'm looking for a skilled individual to develop a custom Google script spreadsheet to cater for my company's specific needs in the area of sure betting/matched betting and accounting functionality. This project is of high significance and is strictly for in-house usage. Ideal Spreadsheet Functions: - Sure betting/matched betting analysis: Essential for calculating sure bets and providing comprehensive insights. - Accounting functions: Streamlined tracking of profits, bets, balances and expenses. - Identity management: Essential for identifying our partners, keeping track of their ownership share based on gain, withdrawals, and deposits to the company. - Sequential betting tracking: We would need this for a detailed record of sequential bets. We can explain further on thi...

I'm looking for a skilled programmer with experience in Node.JS, capable of developing a TikTok download API for me. • The API should be able to download videos specifically. • The downloaded videos must be in MP4 format. • The API should include an option for users to select from multiple video quality options. If you've previously created similar projects or have hands-on experience with TikTok APIs, your application will be highly considered. The project's success will potentially lead to more work, as I also have other related projects. Please provide a timeframe for completion in your bid.

Hello I need an experienced programmer willing to take a project that requires attention to detail and precise understanding of the subject matter. I can give extensive details about the ideal functioning of the spreadsheet I need done, however, this is an overwview: Track all gross/net profits track all account balances track all bank ...overwview: Track all gross/net profits track all account balances track all bank balances track all ongoing and completed bets on each account track across futile types of bet single and sequenced (this will require custom logic) as well as more basic things. im looking of a single place for everything to happen and for the right person to create it. No work will need to be done with external API this is only an internal management and accounti...

...create an E-commerce website for me. The design and functionality should resemble the clean and straightforward structure of amaryahenna.com. The purpose of this website is to sell my products online seamlessly. Key Information: - Type of Store: E-commerce - Volume of Products: Less than 50 items - Website Example: Site Requirements: - Intuitive navigation and easy to use checkout system - Mobile-friendly design - Product pages with high-quality images and detailed descriptions - Engaging and easy-to-update blog section - Basic SEO settings Missing Elements: - I have yet to develop a logo and complete brand identity, so your expertise will be crucial in this area. Ideal Candidate: - Proven experience with WordPress and Shopify - Portfolio of E-commerce sites, ideally

I'm currently in search of a skilled Laravel developer who can help me finalize an API for a video chat application. The task involves enhancing the existing API endpoints and developing new functionalities to ensure its smooth operation and seamless integration. Key responsibilities include: - Extending the API to support real-time notifications, user authentication, call recording, file sharing, and a ticket-based system for bugs and issues tracking. - Implementing real-time status updates for the bugs and issues tracking feature. I am particularly keen on someone who has expertise in Laravel, API development, real-time systems, and bug tracking. Your past experience with similar projects will be an added advantage. To avoid the enormous amount of a...

...Cart and Checkout: An easy-to-use cart and secure checkout process are essential for a seamless customer experience. - Location and WhatsApp Integration: The website should have a section that displays the location of my business, and integration with WhatsApp business for easy communication with customers. Ideal Skills and Experience: - Extensive experience in WordPress website development, particularly with elegant and sophisticated designs. - Strong portfolio of previous work in the food or event industry. - Proficiency in creating responsive and user-friendly website interfaces. - Knowledge of e-commerce tools and payment gateways for a smooth online shopping experience. - Familiarity with location integration and third-party app integration (specifically WhatsApp Bus...

...understanding of professional web design and familiarity with the stock market trading landscape in order to execute complex transactions on the platform. Prior experience in developing and working with financial technology will be highly valued. Design Preference: - The design should be clean, professional, and cater to a corporate audience. It should facilitate easy navigation and user-friendly transaction processes. I am looking for the professional team and in terms of milestones I will agree with only 2 milestones Milestone 1 - End of UX/UI design Milestone 2 - End of delivery The architecture needs to be API driven architecture as in it needs to connect to Brokers like (Zerodha, Upstox, Dhan etc) in indian market and global market e eventually we cannot do e...

Tasked with migrating our existing PHP/Apache project files and DB database from our live server to a new vendor server. This positions requires: - Working hands-on with Unix servers - Strong understanding of PHP 7.0, the version currently utilized on our live server - Familiarity with Apache 2.4, the version currently running on our live server - Capable of accurately inputting database credentials - Ensuring the project is fully functional on both web and mobile platforms Ideal candidate will exhibit expertise in server administration, specifically Unix. Familiarity with PHP 7.0 and Apache 2.4 is required. Knowledge of databases, particularly inputting credentials, is appreciated. Experience in ensuring cross-platform functionality on web and mobile applicat...

We are seeking a skilled full-stack developer with 3+ year experienced for a SAAS-based Electronic Medical Records (EMR) system. Responsibilities: -Architect and ...-Implement intuitive UI/UX using Vue.js and Tailwind Css. -Implement RESTful APIs and integrate third-party services -Optimize application performance and ensure code quality and debugging issues reported by users or tester -Plan, develop, and implement microservices Requirements: -Minimum 3 years experience in Node.js and Vue.js. -Proficiency in building and consuming RESTful APIs, and experience with API design principles. -Previous experience in SAAS based EMRs, Seeder, Data migration and Functional module development Use of freelancer's desktop time tracking with screenshots is required for automatic payment...

I'm in need of a web scraping wizard who can help me extract text data and profiles from Twitter website. Key Requirements: - The ability to scrape text data and profile information efficiently and accurately. - Experience in web scraping, with a strong portfolio showcasing past work in similar projects. - The time for scraping a post and profile must be less 3 seconds without using Twitter API. The final deliverable should be in a format that's easy for me to analyze, but I'm flexible on whether it's a CSV file, Excel spreadsheet or a database format. Please describe your past work examples with your application. Write "Blue" on the head of your bid if you are not a bot.

...skilled professional to help me set up a WhatsApp API account for a chatbot, capable of supporting multiple languages. This project involves configuring the account with 3-5 phone numbers. Key Requirements: - Online sessions helping us configure our account. - Configure a WhatsApp API account: You should be proficient in the technical aspects of setting up a WhatsApp API account. - Set up multiple phone numbers: The account needs to be configured with 3-5 phone numbers to ensure optimal functionality. - Multilingual chatbot support: The chatbot should be capable of supporting multiple languages. Ideal Skills/Experience: - English or Spanish speaking persons - Proven WhatsApp API experience in more than 2 projects - Proficiency with WhatsApp API - Ex...

I'm looking for a skilled React developer to assist in the creation of a single-page application with specific features. Key Responsibilities: - Develop a single-page application with a focus on u...with a focus on user authentication. - Implement a broadcast and group creation functionality on the application. - Integrate a Whatsapp-based template broadcast feature. Ideal Skills and Experience: - Proficient in React development. - Previous work involving user authentication functionalities. - Experience in implementing broadcast and group features. - Familiarity with integrating Whatsapp API for template broadcasts. This is a unique project that will require a developer with a keen eye for detail, as it involves the creation of a seamless single-page application with Whatsa...

...APP ON THE SHOPIFY APP STORE - PLEASE DO NOT BID. To get an idea of how the Wordpress plugin works and the kind of configuration that will be required for the shopify plugin see the wordpress store page: We do not need any of the age assurance elements building, this is already done. The flow is as follows: 1) User arrives at Shopify Checkout with age restricted product -> 2) Authenticate and launch the Luciditi Web SDK U/I-> 3) Luciditi U/I handles entire age assurance process -> 4) Hosting shopify site processes the result-> 5) take payment and process order as normal if success OR retry/exit if fail age assurance. The work involves calling out to a JS SDK which performs all necessary functions required for age assurance and then

Hi I want someone to implementation Conversion API on my website.

...IndexedDB for local data persistence, and the API for capturing images on iPhones (local storage). The application will be used exclusively by employees of my gardening service company. It's not intended for use by the general public. 1. Project Overview: This application allows users to create estimates for garden spaces. Users can enter customer information, define garden space details (including capturing an image), and generate an estimate. The estimate can then be sent via email to the customer for their approval. 2. Technologies: Frontend: Vue.js 3 State Management: Pinia Email Sending: EmailJS (with SMTP server integration) Local Storage: IndexedDB Image Capture (iPhone): API 3. Pinia Store () The Pinia store will manage

I'm in the pro...also send the generated bill to customers via WhatsApp. Pls note my billing software cannot be altered in anyways nor any API connection can be established. Key Requirements: - Integration: I need a developer to integrate the billing software with WhatsApp for seamless bill transmission. - Manual Customer Number Input: The software should support manual entry of customer numbers for bill sending. - Format: The bill needs to be sent in a suitable format for WhatsApp. Ideal Skills and Experience: - Proficient in Software Integration: The developer should have experience in integrating software systems. - Familiarity with WhatsApp APIs: An understanding of the WhatsApp API is crucial for this project. - UI/UX Design: Ability to design the bill in a Wha...

I'm building a WhatsApp chatbot using a tool called Botpress. The purpose of this chatbot is for parents to schedule tutoring sessions with teachers. There are four tables involved: HijosTable (col...the ProfesorTable. The key functionalities I need for the bot include: - Answering frequently asked questions - Providing customer support - Collecting user feedback - Allowing making reservations through a link For reservations, the bot should be able to display available time slots pulled from Google Calendar. Freelancers with experience in API integrations, particularly Google Calendar, would be ideal for this project. Proficiency in Botpress and understanding of the WhatsApp Business API are also necessary. A keen sense of UX for designing effective and ...

I've built a React website with separate pages, and I need a skilled developer to connect them and integrate a chatbot. Here's what I'm looking for: - Connect: Link the home page with another page that opens through the navigation bar. Ensure the transition is seamless and the user experience is smooth. - Chatbot Integration: I have a chatbot that's been designed to work with the ChatGPT API. I need it to be integrated within the content of the website. The chatbot should be able to provide product/service information and answer customer queries. The integration should be user-friendly and should not interfere with the design and functionality of the website. Ideal Skills: - Proficient in React - Experience in connecting separate pages in a React website - Fami...

Private API - Login, Stock, Order.

I'm in urgent need of a WordPress expert to help me finish up setting up my e-commerce website. The site is almost complete, but there are few key features and tasks which need to be addressed. Key Requirements: - Implement Product Search Functionality - Set Up Discount/Coupon Codes - Ensure products are under correct categories - Set up taxes at checkout - Install necessary addons Products: I have less than 50 products which need to be listed on the site. These products are in various categories and require appropriate categorization. Images and Descriptions: I'm capable of creating high-quality images and descriptions for my products, so no assistance is needed in this area. Ideal Skills and Experience: You should have a proven track record in WordPress and e-commerc...

...Proficient in Pyspark with hands-on experience in data storage and retrieval projects - Familiar with Data Warehousing concepts and best practices - Able to recommend and implement appropriate real-time processing solutions - Strong attention to detail and commitment to data quality. Specifically, I have a Jira ticket that consists of creating an application that runs on Airflow and connects to an API with survey metadata with values such as if it was opened, if it was answered, etc, then it should generate a zip file with all the data in jsons and save it in a S3 bucket. Once in the bucket you must save the information in a Hive table. All the code should be from Pyspark and there is a similar application that saves the raw survey data that you can take as reference. You need ...

I'm about to get daily PDF forms and need them automatically dumped into a Google Sheets document. The project involves: - Extracting data from incoming PDFs and inputting them into corresponding fields on Google Sheets. - Ensuring that each form submission creates a new row in the Google Sheets document. It's essential that: - The data is accurately extracted with no errors. - The system can handle a normal volume of PDF submissions (no more than 150) Ideal qualifications: - Proficient in web scraping and data entry. - Experienced in working with Google Sheets and PDF manipulation. - Ability to create an automated system for seamless data transfer.

Technical Knowledge For Front End You can c...Create a validation in each form field please create a minimal 6 field (Plus point if the validation from back end side). For example: Name should contain the alphabet, not a number. (If it’s number show error message) The phone number contains a number. Etc. (you can create your field & own rules) * Create a reusable component. Add CSS animations to enhance user experience. Design and create an API to provide above requirements and integrate it with the Frontend side. Please create the next screen to show all of the form data. Please use Git for your workspace and push your commit with well documentation. (e.g. utilize readme file) Please deploy your website (vercel) in a free webhoster. Explain how to deploy the websit...

I need a custom WhatsApp script built in PHP. The script will quickly send messages to the numbers in my database list. The script should: - Interface with my database to access numbers. - Be efficient and scalable for reaching a large number of contacts. Ideal skills and experience for this job: - Proficient in PHP, with experience in building similar WhatsApp scripts. - Familiarity with database connectivity in PHP. - Understanding of WhatsApp API and message sending limitations. - Prior experience in handling bulk messaging. Please note that the script should adhere to all WhatsApp's terms of service, including message limitations and privacy regulations.

I'm in search of a highly proficient WP PHP developer who can skillfully handle custom coding for product lines, focusing on the following: - Fix broken links: Specifically, the broken links on product pages and in navigation menus. - Modify existing functionality: This includes adding new features, updating existing ones and removal of unnecessary ones. - Improve performance: Optimization and tweaks as necessary to boost the overall performance. Ideal candidates will have extensive experience in WP PHP, understanding of linking strategies, and a knack for improving site functionality and efficiency. A comprehensive understanding of custom coding is paramount.

I am seeking an experienced Linux/LAMP/PHP developer/sysadmin to update my PHP version from 7.2.34 on an AWS Amazon Linux 2 instance. You need to ensuring the smooth operation of my application, which majorly involves database operations, but I will do the checking. Main Requirements: - Update PHP version from 7.2.34 to a newer stable version at least 7.4. Desired Skills and Experience: - Extensive experience with PHP - Proven track record of updating PHP versions on live applications. Please include proof of similar past work in your proposals.