PHP file running problem

Question

Follow the above example and download the php file when submitting. What's going on?

Answer 1

Whether the tag you submitted is a tag, you need to use <input type="submit" value="submit"> to submit

There is also <form actioh="the php file to be submitted. Name.php" method="post"> The form tag submission address must also be written correctly. Write it as the php file you want to submit, and then the .php file receives the data

Answer 2

You just right-click and open it with the browser - -

You need to use the port and protocol to run the program