Answers for "how to run .php files"

run php server

cd path/to/your/app
php -S localhost:8000

start php file

<?php //start
  
?> //stop

execute php file from command line

php -f /path/to/your/file.php

how to execute a php script from the command line?

To execute a php script, use the PHP Command Line interface(CLI) and specify the file name of the script in the following way:
php script.php