Do I need to know PHP to use WordPress?

No. You should be able to use WordPress through the user interface, without ever having to touch PHP.

The only time you would modify your WordPress website with PHP would be when integrating some of the plugins. …

What is WordPress?

WordPress is open source web software that you can install on your web server to create your website, blog, community or network. WordPress started out as a tool for blogging, but has evolved into a full-fledged Content Management System (CMS), capable of powering websites, …