Need help with "include"

I am using a blank app, and trying to open another blank app into a div tag using include like this “<div><?php include ‘…/marzo/index.php’; ?> </div>” but it opened with errors

if somebody can help me I will apreciate…thanks

Hallo Bernardo,
it’s not clear for me, what you want to include.

If you want to include a PHP code, you should use a library to store the common code and include that library,

If you want to include the complete application visually, I would suggest to use the HTML iframe for example.

Regards

Thank you Gunter!