I want to create a custom page for my WordPress blog that will execute my PHP code in it, whilst remaining a part of the overall site CSS/theme/design.
The PHP code will make use of third-party APIs (so I need to include other PHP files).
How do I accomplish this?
N.B.: I do not have a specific need to interact with the WordPress API – apart from including certain other PHP libraries, I need I have no other dependencies in the PHP code I want to include in a WordPress page. So obviously any solution that didn’t require learning the WordPress API would be the best one.