How do I run a PHP file in my browser? I know what the file is for and I know how it looks because I tested it online. But now I downloaded it locally to my computer and I do not know how to run it on my browser. Is there a way maybe to link it to a HTML like you do with JavaScript or CSS to make it work on a web browser also after it is online how will I manage it to work?
If I can not link then maybe I can use iframe to see it in a HTML iframe. Is that possible? Yet the question is not based about iframe, but I do not exclude the iframe possibility too. That is why I ask of it too.
Or even better, if there is a way to both link and use iframe for the PHP?
The entire PHP file I got is a email function that works and looks a loot like a HTML and JavaScript file, but it is written in PHP. If I simply change the name to the file from PHP to HTML I can open it in the browser and it looks like a HTML file with few defects since it is a PHP file after all.
The file I downloaded was from here: https://www.hscripts.com/scripts/php/registrationMailer.php
And it is this PHP file I am specifically intrested in: https://www.hscripts.com/scripts/php/HMAD/hmailer.php
NOTE: I am not asking of "PHP code is not being executed, instead code shows on the page" as the other page is asking. I am asking of "How do I show / run a PHP file in a browser? As if it was a webpage."