Problem:

My landing page contains on PHP code and when I use the "embed" method in the landing page section, the PHP code is shown in the browser.

(This topic also applies with ASP and Perl)

Solution:

Dynamic web pages that require server side processing should not be used as landing pages when using the "embed" method, because the landing page will be read directly from the server's hard disk, without any web server pre-processing, and the file with the PHP code will be sent to the browser.

You must use "redirect" method when your landing page contains PHP code.