I have a small stand alone app which allows people to log in to look at reports for a logging setup that we have. It is unrelated to wp in any way but recently, a few people asked why we don't have this app as part of a wordpress installation.
That lead me to trying a little test by taking one of the existing php pages, sticking a 'template' name in it then referring to it from a page. Low and behold, it shows up almost like the stand alone page but now it's part of WP. Mind, the rest of the wordpress site disappears but that is probably just a little ccs work or something I don't know about which I need to put in the php page.
The test lead me to wanting to find out what it would take to convert the small php app into a wordpress one but my problem is, I have no idea what terminology any of this uses.
So, if I wanted this small stand alone app to be converted this way, what would this be called?
Is it a php top wordpress conversion?
Is it a template project? Is it one template or one for every single page of the app?
I need some starting points so that I can research what would be needed to accomplish this.