Welcome to the forums, @michelbevan28.
Wordpress is a content management system, which can be used for e-commerce with a plugin such as WooCommerce.
PHP is a language which would allow you to create an e-commerce site from scratch, but it sounds as if you’re a beginner, so that’s really not the best way to go.
There are very many systems - paid and free - created specifically for e-commerce. Many of them have free trial versions you can test to see which one is most suited to your requirements before committing yourself. This post is rather old, but it might give ypou a good starting point for further research: eCommerce Software / Systems