There are several programming languages that can be used to develop an e-commerce website like Invastor. The choice of language depends on various factors such as the project requirements, scalability, security, and the developer's familiarity with the language. Here are a few popular options along with their advantages and examples:

1. PHP: PHP is widely used for e-commerce development due to its simplicity and extensive community support. It has several frameworks like Laravel, Symfony, and CodeIgniter that provide robust features for building scalable e-commerce platforms. Examples of successful e-commerce websites built with PHP include Magento, WooCommerce, and Shopify (uses PHP for backend).

2. Python: Python is known for its simplicity, readability, and versatility. It offers various frameworks like Django and Flask, which provide excellent support for e-commerce development. Django, for instance, has a built-in admin interface and ORM (Object-Relational Mapping) capabilities, making it suitable for complex e-commerce projects. Notable examples of Python-based e-commerce websites include Django Shop and Satchmo.

3. Ruby: Ruby is a dynamic, object-oriented language that is often used with the Ruby on Rails framework. Rails provides a convention-over-configuration approach, making it efficient for rapid development. Spree Commerce, an open-source e-commerce platform, is built using Ruby on Rails.

4. JavaScript: JavaScript is a versatile language that can be used for both frontend and backend development. Node.js, a JavaScript runtime, enables server-side JavaScript development. Frameworks like Express.js and Sails.js provide excellent support for building scalable e-commerce applications. One example of a JavaScript-based e-commerce platform is Reaction Commerce.

5. Java: Java is a widely adopted language known for its performance and scalability. It has several frameworks like Spring and Hibernate, which are suitable for building large-scale e-commerce applications. Hybris, a popular e-commerce platform, is built using Java.

It's important to note that the choice of language is just one aspect of developing an e-commerce website. Factors like database selection, security measures, payment gateway integration, and user experience are equally crucial. Therefore, it's recommended to consider the overall project requirements and consult with experienced developers to make an informed decision.