Custom online store php工作

...experienced PHP Developer to create a user account management system for my ad publishing website. Key Functionalities: - User Account Management: This system should allow for User Registration and Login, Profile Management, and Account Settings. - Ad Posting Features: Implement the ability for users to Post Ads, Boost their Ads, and Manage Ad Details. - Optional Payment Integration: The system should support payment functionalities via API, enhancing the user experience. This feature is optional but would be beneficial for our service. Your Responsibilities: - Develop a user-friendly and secure system that ensures a seamless user experience. - Integrate the required features and ensure they function efficiently. - Provide clean and well-documented code. Ideal Skills: - Profi...

...professional PHP developer to upgrade my website from PHP 7.4 to PHP 8.2. The main goal of this upgrade is to ensure compatibility with the latest version of PHP. The ideal freelancer for this project should have: - Extensive experience with PHP development - Proven track record of successful PHP upgrades - Knowledge of the differences and potential issues between PHP 7.4 and PHP 8.2 - Ability to troubleshoot and resolve any compatibility issues that may arise - Strong communication skills to keep me informed throughout the process If you have experience with third-party services or APIs that may need to be tested for compatibility with PHP 8.2, please indicate this in your proposal. Additionally, if you have experience wi...

I'm looking for a professional to create a customized Word and Outlook template for my marketing materials. The template should include: - Custom color scheme - Logo integration - Unique font styles The Word template should have: - Header and footer areas - Predefined text sections - Table of contents The ideal candidate should have experience in designing and customizing Word and Outlook templates, as well as a good understanding of marketing materials. A keen eye for detail and the ability to create visually appealing yet professional designs is a must. Looking forward to working with a creative professional on this project.

...customize forms and integrate them with Google Sheets. - Strong understanding of inventory management principles and best practices. - Excellent communication skills and the ability to explain complex concepts clearly. - Attention to detail and a commitment to delivering high-quality work. **Preferred Qualifications:** - Experience with scripting in Google Sheets (e.g., Google Apps Script) for custom automation. - Familiarity with other Google Workspace tools, such as Google Drive and Google Calendar. **How to Apply:** If you meet the requirements and are excited about the opportunity to optimize our inventory management system, please submit your proposal along with examples of relevant work. Include any relevant certifications or training that demonstrate your expertise in ...

Keresünk egy PHP/Symfony 1.4 fejlesztőt, aki csatlakozna csapatunkhoz szabadúszóként, felelős lenne az online platformunk módosításáért, fejlesztéséért és karbantartásáért. Főbb feladataid közé tartozik: - A meglévő funkciók bővítése - Háttér folyamatok optimalizálása - A meglévő funkcionalitások fejlesztése Ez a projekt elsősorban a keresési funkcionalitás bővítését foglalja magában a platformunkon. A cél az, hogy javítsuk a szövegalapú keresési funkciót, hogy hatékonyabbá és ...

I'm in immediate need of someone who can guide me through the process of publishing my Android app on the Google Play Store. Key Requirements: - **Immediate Assistance:** I require this done as soon as possible. - **Publishing Process Expertise:** You should be well-versed in the process of publishing apps on the Play Store. - **Good Communicator:** A clear communicator who can guide me effectively through each step. The tasks include: - Help with basic tasks like app testing and debugging - Guidance on setting up the Play Store account - Pointers on how to finalize the publishing process This is a personal project, and I'm looking for someone who can provide basic guidance to help me publish my app quickly.

**Purpose:** To collect data (product information, stock status, prices, etc.) in the B2B programs of 8 different suppliers. Developing software that can instantly capture...captured data into a format suitable for the user's system. 1. **Backend Development:** Required for system integration and data processing. 2. **Data Scraping/Web Scraping:** It is important to extract data from suppliers' B2B programs. 3. **API Development/Integration:** To securely integrate with suppliers' systems and retrieve data. 4. **Database Management:** It is a critical skill to organize, store and always keep the captured data updated. 5. **Security and Encryption:** It is important to ensure the security of users' data, especially to protect keys and passwords. We can share other...

I'm seeking an experienced eCommerce website designer to develop an online store that sells a mix of disposable and non-disposable medical items. Some key expectations from freelancers bidding on this job: - Proficiency in eCommerce website design. - Precise understanding of medical items would be advantageous. - Demonstrable ability to create a robust product search function. the site should contain the following: Control Panel No. 1 (Window 1): A window through which you can add the product with pictures, explanation, price, etc., along with the number of the product that was received to the store, and at the same time, when added, it is displayed to customers through the customer’s separate window. This window also allows exporting products when they a...

...quality of the website and design layout. Reference 1 : Reference 2 : Reference 3 : You can also share some similar demos or templates that we can use to reduce the price as our budget is on the lower side. - Custom Theme Design: The design is expected to be a blend of Minimalist and Modern styles. Your creativity in implementing these design elements will be key to delivering a visually appealing and user-friendly site. - Custom Functionality Development: This part of the project involves creating new functionalities for the website. Specifically, we need to include Product Customization Options, Advanced Search Filters, and Customer Reviews and Ratings. These features are crucial for enhancing user experience

I'm in need of a PHP tool that will allow me to process WooCommerce orders efficiently. This tool should accomplish several key tasks to streamline my order fulfillment process. Key Features: - **Order Recording:** The tool should save all order details locally in a database. This serves as a valuable record of all transactions for future reference and analysis. - **Packing Page:** I need a simple packing page that allows me to mark individual items as packed. This will help keep track of the packing process and ensure all items are included. - **FedEx API Integration:** The tool must be capable of integrating with FedEx's API to perform crucial shipping tasks such as: - **Fetching Shipping Rates:** It should automatically retrieve shipping rates from FedEx to provide a...

I'm in need of a Shopify developer to create an e-commerce website for my business. Key Requirements: - E-commerce Focus: The main functionality of the website will be to facilitate online transactions and sales. So, I need someone who is well-versed in creating efficient and user-friendly online stores. Ideal Skills and Experience: - Proven track record in developing Shopify websites, particularly with an emphasis on e-commerce. - Proficiency in designing and implementing online store functionalities such as product listings, carts, checkouts, and secure payment gateways. - Knowledge of Shopify's backend systems and how to effectively manage and customize them for an optimal user experience.

...developer with extensive experience in Grafana to help integrate APIs and build custom plugins for my analytics and visualization web application. Key Responsibilities: - Custom API Integration: You'll be tasked with integrating a custom API for InfluxDB. This is a critical part of the project. - Custom Plugin Development: I need plugins that can handle a range of tasks including sending custom emails with attachments, automating the creation of users and dashboards, and developing custom maps and charts with computed data. - Heatmap with Computed Data: One of the custom maps I need is a heatmap with computed data. You should be able to design and implement this in Grafana. - Choropleth Map with Computed Data: The other custom...

I'm seeking a skilled graphic designer to resize my app icon into various sizes for the App Store (macOS). The image is currently in PNG format and does not require any design adjustments or enhancements. Key deliverables: - Resize the icon for mac app store submission - Sizes are in attached screen shot as well as png for icon - Ensure the resized icons are of top quality and meet Apple's size requirements for the App Store. Ideal candidates should have: - Prior experience in resizing and preparing app icons for the App Store. - Knowledge of macOS app icon requirements. - Strong attention to detail to ensure the quality of resized images. - Proficiency in working with PNG format.

I'm in need of a talented UI designer who can create a highly interactive interface for a PHP Laravel project. The primary objective of this job is to design a user interface that will target business professionals and provide them with a seamless and engaging experience. Key Requirements: - Proficiency in UI design for PHP Laravel: You should be well-versed in creating user interfaces specifically for PHP Laravel projects. - Experience with Interactivity: The interface you design should be highly interactive, offering real-time features and engaging functionalities. - Understanding of Business Needs: The target audience for this interface is business professionals, so your design should cater to their preferences. - AWS Knowledge: Familiarity with AWS would be a...

...assistance in several key areas. This requires a deep understanding of Wazuh, as well as other security systems that it can interact with. Key Responsibilities: - Installing and configuring Wazuh on my network. - Integrating Wazuh with my existing SIEM, IDS, and Log Management systems. - Developing custom rules in Wazuh as needed for my specific requirements. The ideal candidate is expected to be proactive, responsive to emails and also have a keen eye for security issues that may need custom rules to be created. Previous experience with Wazuh is important, as is a strong familiarity with the systems Wazuh is likely to interact with. This includes SIEM, IDS, and Log Management systems. Your ability to work independently and effectively communicate through written corre...

I'm looking for a Shopify expert to help me with a couple of specific tasks on my online store. Key Requirements: - Bulk Price Adjustment: I need to adjust the prices of a range of products. This will require editing them in bulk to save time and avoid manual entry errors. - Variant Editing: I also need assistance with editing product variants. This includes adding new variants, changing existing ones, and ensuring they're correctly linked to the products. Access to my Shopify store: You'll be provided with a staff account with limited permissions. This will allow you to access the necessary sections to make the changes required without compromising the overall security of my store. Application: Please include details of your previous relevant...

I'm in need of an experienced Shopify developer to work on my store's theme. I need someone who can add a script into a specific page in an online store.

I'm looking for an experienced digital marketing analyst to critically evaluate an online store. The Google Analytics Demo Account is to be used to conduct the analysis as well as any other data sources. Key Areas of Analysis: - E.G. Traffic Analysis: Sources of Traffic: Understanding where our visitors are coming from. 8 More to be disclosed I expect a comprehensive report on each of these aspects, (max 1500 words) with actionable insights on how it can be improved. The ideal candidate has strong analytical skills, is proficient in tools like Google Analytics and SEMrush/Moz, and has a background in e-commerce.

I am in need of a Power BI data analyst with at least one year of experience. The role involves man...year of experience working with Power BI is required. - Data Management: Along with visualization and analysis, you may be required to handle other general data management tasks. Preferences: - I prefer someone who can create interactive dashboards, develop informative charts and graphs, and generate custom reports. Ideal Skills: - Proficient in Power BI and data analysis - Strong understanding of sales, financial, and customer data - Capable of creating interactive dashboards, charts, and custom reports - Prior experience in managing various data-related tasks If you meet these requirements and are able to work on data visualization and analysis extensively, I would like ...

I am in need of a skilled web developer. The primary goal of this website is to serve as my final year project. I have the application file already, but it needs some alteration. The website should have the following features: - User authentication: The website should allow users to register, log in, and manage their account securely. - Database integration: The website should be able to store and retrieve the necessary data securely. - Improved functionality: Update a weekly-basis planner to a monthly-basis planner (schedule) I'm looking for a professional who can take on this project and deliver a high-quality website.

I'm in need of a talented marketer to take the reins of my dropshipping store, specifically focusing on home decor products. This will be a commission-based role, meaning you'll earn money based on the sales you generate. - Target Market: I'm aiming to reach all age groups with an interest in home decor. Your strategies should be broad, engaging and appealing to a wide audience. - Marketing Channels: You should be skilled and experienced in utilizing multiple marketing channels. Specifically, I'm interested in leveraging Social Media, Email Marketing, and Search Engine Optimization (SEO) to drive traffic and conversions. Ideal skills and experience for this job include: - Proven experience in dropshipping marketing - Expertise in utilizing various social medi...

My bakery is now in it's fourth generation of ownership. My Dad started using a database program called Formula Coster on his Apple IIc to figure out how to correctly price our baked goods based on ingredient costs, labor costs, overhead, etc. The program also allows us to store the formulas and makeup instructions for all our products based on the dough batch and individual pieces from the dough. It's a simple program that we still use today, but are afraid it may not continue to work very long. Other programs exist, but are all cloud based and require subscriptions with features we do not need. I am seeking an adept database developer to either continue work on an in-progress database or commence anew based on existing requirements. This database is intended for exclu...

I'm seeking a skilled individual to assist me in creating a custom project cash flow spreadsheet. The primary functionalities I'm looking to incorporate in this spreadsheet are budget tracking, expense categorization, and cash flow projections. The spreadsheet will be primarily used for inputting income and expenses and should be updated on a monthly basis. Key requirements: - Design and development of a custom cash flow spreadsheet - Implement budget tracking, expense categorization, and cash flow projections - Ensure ease of use and understandability for monthly updates Ideal Skills: - Proficiency in spreadsheet software (e.g., Excel, Google Sheets) - Experience in creating budget tracking and cash flow projection tools - Strong understanding of financial data ...

I'm looking for a skilled freelancer to help me connect my Shopify website with a specific wholesaler account. This wholesaler uses the Rest API to link their products and I'm planning to sell electronics and gadgets through my store. Key Responsibilities: - Establish a connection between my Shopify store and the specified wholesaler account using Rest API. - Ensure that the products from the wholesaler are seamlessly integrated into my site. - Implement a mechanism for real-time updates of the products on my Shopify website. Ideal Skills and Experience: - Prior experience with Shopify and API integrations, particularly with wholesalers. - Strong understanding of Rest API and experience with real-time data syncing. - Familiarity with electronics and gadget product...

I'm looking for a PHP developer to assist in updating a core part of my project quickly. This is a backend development task that requires immediate attention. Key Responsibilities: - Update a critical part of the project written in core PHP. - Ensure the changes are implemented quickly to avoid delays in the project. Ideal Candidate: - Proficient in PHP, with a solid understanding of core PHP. - Experience with backend development is a must. - Able to work under pressure and deliver tasks promptly.

...for my online store. The store will be primarily focused on physical products, ranging from 50 to 100 different items. The project entails: - Complete website creation and management: This includes setting up the website, configuring the necessary plugins, and ensuring the site is fully functional. - Designing: I need the website to be aesthetically pleasing, user-friendly, and fully responsive. - E-commerce functionalities: While I haven't specified a need for any specific e-commerce features, I am open to suggestions for enhancing user experience and increasing sales. Ideal candidates for this job should have: - Proven experience in developing E-commerce websites on WordPress. - A strong sense of design and aesthetics. - Knowledge of best practices in E-com...

As an affiliate m...affiliate link found in the dashboard 2. You use your expertise to find customers and lead them to purchase the products on TheMeddict's website. 3. IMPORTANT: Make sure they purchase via your personal affiliate link, otherwise, TheMeddict will not be able to track your performance, hence, unable to pay you accurately. 4. Every month, they will check how much sales are made through you via the custom link provided to you, then, will pay you via Bank Transfer. 5. The offer is, 20% commission. Every sale, 20% of that will be paid to you. For example, $10,000 sale: $2,000 paid to you. If you are interested, sign up now as an affiliate! Contact them on Instagram for more info: To view the products, see:

I'm looking to have a chat feature added to my online tutoring platform to facilitate both one-on-one and group conversations between tutors and students. The primary purpose of this chat function is for instant messaging. Key Features Needed: - Instant Messaging: A real-time chat functionality that allows tutors and students to communicate seamlessly. - Group Conversations: The chat should support group conversations as well as one-on-one chats. - Message Read Receipts: The ability for users to know if their message has been read by the recipient. - Typing Indicators: This feature will show when the other person is typing to enhance real-time communication. - Offline Messaging Capability: The chat should allow users to send messages even when the recipient is offline, which w...

I am in need of a skilled app developer who can create an online real money Ludo gaming application. The game should offer a unique gameplay experience with custom rules. Key Features: - The game should intergrate real-money gambling. It is crucial that the winner earns real money in form of in-app currency or through a payment gateway. - Multiplayer functionality: The app should allow multiple players to participate in the game at the same time. It should bring that social aspect of the game to life. - Unique gameplay: The game should not just be a replica of existing Ludo games. There have to be some custom rules that make it stand out from the rest. Experience in developing real money gaming apps or Ludo games will be a big plus for this project. Also, having sk...

I need an experienced PHP developer to fix some issues in our existing code. The main problems are with the Search functionality and the Database Connection. Key responsibilities: - Fixing the broken search functionality - Resolving the database connection issues Your application should demonstrate: - Proven experience in PHP - Understanding of database connections and search functionalities - Good problem-solving skills Please include relevant experience in PHP in your proposal.

I'm looking for a full-stack developer to assist me in completing the development of a dApp token launcher. Here's an overview of the project and the skills required: I already have 70% of the work done, I have the token factory scripts and launcher's, but I am having issues with editing the UI of the existing source code I'm using. I would like someone to help me change out the existing UI and use a different one. - The code is mainly Solidity for smart contracts and JavaScript for the front-end, particularly React, NextJS, and TypeScript. - The ideal candidate should be proficient in building user interfaces with React, NextJS, and TypeScript. You should also have a good understanding of Solidity for smart contract development. - I already have a design in mind for ...

...recently started experiencing an issue with my custom WordPress/WooCommerce product page. The add to cart button is missing, and it's impacting the functionality of the site for all users across different browsers – Google Chrome, Mozilla Firefox, and Safari. Before this issue started, I made some changes to the site, including updating plugins, the theme, and making custom code modifications. These changes might have triggered the problem. I need a skilled WordPress/WooCommerce developer to urgently fix this issue. Ideal skills and experience for the job include: - Extensive experience with WordPress and WooCommerce - Proficient in debugging and troubleshooting WordPress issues - Familiarity with plugin and theme updates - Strong understanding of custom...

I'm in need of a custom NFC payment gateway hardware that is compatible with Android. It will be integrated into a self-serve restaurant kiosk. The system should be able to handle both contactless card readers and mobile payment options. Key requirements include: - Capable of processing 50-100 transactions per day - Compatible with Android operating system - Supporting both contactless card readers and mobile payment options Ideal candidates should have experience with: - Custom hardware design, particularly in the payment processing field - NFC technology and its integration with Android systems - Understanding of self-serve kiosk systems and the unique requirements involved This project is a great opportunity for someone who is experienced in custom hardwar...

I'm seeking a skilled professional to develop and implement a Google Ad campaign to attract more leads and new customers to my custom packaging service. Experience required: - Expertise in Google Advertising - Deep understanding of the packaging and printing industry - Demonstrable success in monetizing ad campaigns What I expect from this project: - Visible increase in customer acquisition - Specifically highlighting our custom packaging services - Weekly report on lead conversion and campaign success If you can drive my business growth through strategic Google advertising, I welcome your bid.

I'm in need of a detail-oriented freelancer to handle online form filling tasks involving simple personal information forms from digital documents (PDF, Word, etc.). Ideal Skills and Experience: - Experience in data entry and form filling - High attention to detail - Familiarity with digital document formats - Ability to follow clear instructions - Time management skills to complete tasks efficiently

I'm in need of a skilled web designer and developer to bring my basic design concept to life. While the website's main goal is to sell products or services, e-commerce functionality is not required. After launch, I intend to engage the same developer for content updates. Key Requirements: - Custom website design implementation from scratch - Focus on selling products or services - No e-commerce functionality needed - Post-launch content management support Ideal Skills and Experience: - Expertise in web design and development - Solid understanding of user experience and effective sales techniques - Proficiency in content management systems for post-launch support - Strong communication skills for ongoing collaboration and updates Please keep in mind that this project is ...

I am in need of an online business advertiser to target young adults for my service-based enterprise. Although I did not specify tasks in the beginning, versatility in the following areas is desirable: - Social Media Marketing: Leveraging platforms popular among young adults would be instrumental. Experience creating engaging content that resonates with this age group would be beneficial. - Search Engine Optimization: Enhancing the visibility of my online business on search engines for relevant queries is a must. Proficiency in keyword research and optimization is expected. - Email Marketing: Designing, implementing, and analyzing email campaigns targeted at young adults is a task that could vastly impact the project's success. The ideal freelancer should have a proven...

I'm looking for a skilled PHP developer who can make alterations on my current website. The job involves updating and deleting specific buttons. Ideal skills for this position include: - PHP expertise - Frontend development experience - Proven track record of similar projects The work requirements consist of: Button Modification: - Update and Delete functionalities need to be adjusted to drive a smoother UX - Exact buttons cannot be disclosed publicly, those details will be shared privately with the selected candidate. Note: There's no addition of new functionalities or features required. In return for your work, I promise clear communication, prompt payment, and positive feedback for a job well done. I look forward to working with you!

I'm in need of a Excel setup algo that can execute orders on Zerodha from excel file. I require the following features: - One click button: The system should be able to place and execute my selected orders from excel with one click button. - Customizable Order Parameters: I need to be able to set my own order parameters, including the stock, quantity, price, and other variables. ...- Customizable Order Parameters: I need to be able to set my own order parameters, including the stock, quantity, price, and other variables. The ideal freelancer for this project should have experience in: - Developing python algo application with excel. - Integrating with Zerodha API. - Implementing automated trading systems. - Creating user-friendly interfaces, with some level of cus...

I need a CRM system that is less complicated than the one at , but with a few additional features. The system should be compatible with both web and mobile. Key Features: - Contact Management: The system should allow me to easily manage and store contact information. - Task and Activity Tracking: It should help me track tasks and activities related to each contact. - Email Integration: I want to be able to send and receive emails within the CRM. - Google Calendar Integration: It should have the ability to sync with Google Calendar. LinkedIn Integration: - I need the system to integrate with LinkedIn, specifically to fetch public profile data of people I am connected with on LinkedIn. Ideal Skills: - Experience in CRM development - Proficiency in integrating APIs, especially Link...

I'm in need of a detail-oriented freelancer to handle online form filling tasks involving simple personal information forms from digital documents (PDF, Word, etc.). Ideal Skills and Experience: - Experience in data entry and form filling - High attention to detail - Familiarity with digital document formats - Ability to follow clear instructions - Time management skills to complete tasks efficiently

I am in need of a skilled website designer and developer well-versed in WordPress to spearhead the creation of a professional and effective website for my consulting business. Key Objectives: - Attracting New Clients: The website should have a visually appealing, modern and user-friendly design to captivate an...and Experience: - Proven experience in designing and developing successful WordPress websites. - Strong understanding of user experience and conversion optimization. - Ability to create a visually impactful and professional design. - Previous experience in the consulting industry or working with consulting businesses will be a plus. I am looking for a freelancer who can deliver a high-quality, custom-designed WordPress site with a strong focus on user experience and lead g...

Disponemos de un software de gestión desarrollado en CakePHP 2.10 + MySql. Necesitamos ampliar algunas funcionalidades y realizar algunas refactorizaciones.

I'm in need of a detail-oriented freelancer to handle online form filling tasks involving simple personal information forms from digital documents (PDF, Word, etc.). Ideal Skills and Experience: - Experience in data entry and form filling - High attention to detail - Familiarity with digital document formats - Ability to follow clear instructions - Time management skills to complete tasks efficiently

As a coffee seller, I'm looking for a Shopify ex...channels: Instagram, Google, and Pinterest. The primary focus of my Shopify store is selling my coffee products. Key Requirements: - Integrate Instagram, Google, and Pinterest - Implement subscription options for coffee products - Enable user reviews for customers Ideal Skills and Experience: - Proven expertise in Shopify and sales channel integration - Prior experience in implementing subscription options for products - Capability in setting up and managing user review systems - Knowledge of e-commerce best practices, especially in the food and beverage industry I'm looking for a freelancer who can deliver a professional, user-friendly, and high-converting Shopify store that maximizes our sales potential across ...

...necessary modifications to our existing Zoho CRM system to meet our specific needs. The freelancer should be familiar with the functionality and customization options within Zoho CRM. The responsibilities of this job include updating fields, layouts, and modules, creating custom fields and workflows, and integrating third-party applications. Additionally, the freelancer should have knowledge in data migration, data cleaning, and report generation. Relevant skills: - Zoho CRM customization - Field and layout updates - Custom field and workflow creation - Third-party application integration - Data migration, data cleaning, and report generation DETAILS OF WHAT'S NEEDED NOW 1. Based on the screenshots and auth , zoho won’t send an email with email

I am currently seeking a full-time PHP Laravel developer to join my IT company. The ideal candidate should have 2-5 years of experience and be proficient in working on a variety of projects including e-commerce websites, custom web applications, and API development. Key Responsibilities: - Full-time commitment to the IT company - Develop and maintain e-commerce websites - Build custom web applications - Create and maintain APIs Skills and Experience: - 1 to 2 years of PHP Laravel development experience - Proven track record of successful e-commerce website development - Strong experience in custom web application development - Proficiency in API development - Frontend development skills are a must If you possess the required experience and skills, and...

...NFTs. This involves connecting with cryptocurrency wallets like MetaMask or Trust Wallet to enable users to engage with the DApp 2. The wallet system should also facilitate the showcasing of minted NFTs and their associated metadata, allowing users to view and manage their NFT collections. Key Responsibilities: 1. Implement an efficient and secure NFT wallet system, enabling users to store, manage, and trade their NFT assets seamlessly within the DApp. 2. Collaborate with cross-functional teams to ensure the seamless integration of the DApp with various blockchain networks and protocols. 3. Conduct thorough testing and debugging of the DApp to ensure optimal performance and security. 4. Proven experience in blockchain development, including proficiency in Ethereum...

I'm looking to have a professional, custom Shopify store developed. I'll require your expertise in designing and setting up the store. The goal of the site is to sell products online, so it should be optimized for conversion.