4. PHP and MySQL
PHP and MySQL are powerful tools for creating dynamic and scalable online stores.
PHP is a scripting programming language that is typically used for server-side data processing. You can use PHP to create functions that handle user requests, work with the database, update information, and much more.
MySQL is a database management system that allows you to store and organize your store data. You can use MySQL to create tables, add and update records, run complex queries, and much more.
The combination of PHP and MySQL allows you to create powerful and dynamic features on your store, such as adding items to cart, checkout, user management and much more.
5. Extensions and plugins
Extensions and plugins are additional tools that you can add to your online store to improve its functionality and features.
For example, you can use plugins to add search functionality, social media integration, SEO optimization, and more. Each plugin provides unique features and settings so you can customize your store to suit your needs.
6. Responsive design
Responsive design is an approach to creating the layout and design of your store that automatically adapts to different devices and screen sizes.

With responsive design, you can create a store that looks and works well on smartphones, tablets, and desktop computers. This allows your visitors to have a pleasant user experience no matter what device they are using.
To create a responsive design, you can use various technologies such as media queries, responsive grids, and others.
7. SSL certificate
An SSL certificate is a digital signature that provides a secure connection between the server and your visitor's browser.
Installing an SSL certificate on your online store will help protect your customers' personal information, such as credit card information and shipping addresses. It also allows you to use the HTTPS protocol, which increases visitor trust and improves your search engine rankings.
8. Analytics and optimization
Analytics and optimization are processes that will help you understand how your visitors interact with your store and what can be improved to increase sales and customer satisfaction.
There are many analytics tools, such as Google Analytics, that provide information on traffic, conversions, visitor behavior, and more. You can use this data to identify popular products, your store's weak points, and conduct A/B tests for optimization.
Using these codes and tools, you can create a unique and attractive online store that will attract more visitors and help increase sales.