Ok this is a basic question. I suspect that I do not know the correct terminology to search for the answer.
I am playing in a development environment and this is all about learning and pushing my skills to learn more.
My main web site is an HTML Form that performs some actions when the Submit button is pressed. No problems there.
I want to write a PHP program that creates and initialises a mysql database. I can do that. This only needs to run one time.
When the PHP program finishes I want it to automatically jump to the HTML document that displays the form. The HTML form is the normal landing page, I am merely saving myself from having to manually load the form or code in an href link to click.
I want to just to go directly there when the database initialisation is complete.
Alternately I could start with the HTML form which branches conditionally depending on whether the database exists. But I still want to return to my original form when that action is complete.
I can do this in high level languages , but I am still understanding the "way" that things are coded for the web.