php code inside html file

[yuriechan]

(You can refer all the source code from my "expenseSheet" repository, testGoogleAPI branch)

Q. How can I run PHP code inside HTML file?
p.s. I use server with python -m SimpleHTTPServer 8000
What I have tried but not worked.
==>

1. creating .htaccess file and include AddType application/x-httpd-php5 .html
2. change the file extension from index.html to index.php
   →The file is not loaded on browser. The listing of current directory shows up, and when I click index.php to open, I can only download the file.

My code on screen
: Successfully read "Sign in" & "Sign out" button, allowing user login on gmail.
: php source code is directly printed on the browser page.

Huge thanks in advance! 🍡

[HSE-Group]

Run the file index.php on server with PHP.