In WordPress, ... in addition to your (blog) "Posts" you can create a "Page". The typical example would be an "About" page.
In my case, I created a paged called "app". What is nice about this is I can use WordPress as a content management system, I can change Themes easily, etc. ... but embedded inside the page I can put vanilla PHP code.
In my case, I created a paged called "app". What is nice about this is I can use WordPress as a content management system, I can change Themes easily, etc. ... but embedded inside the page I can put vanilla PHP code.