How to include PHP file in SHTML pages?

Question

I have a shtml file index.shtml in which I want to include a PHP file which performs some programing and returns HTML data. I am trying to include my PHP file but I don't know how to do that, I tried following but nothing is working,

Following line is just printing an error, "[an error occurred while processing this directive] ":

<!--#include file="/SSI/test.php"--> 

This line is displaying some junk characters:

<!--#include virtual="/SSI/test.php"--> 

This line is doing nothing and displaying the command as is in the .shtml page

<?PHP 
    include("/SSI/test.php");
?>

Thanks

Answer 1

If there is no particular reason that you are using .shtml aside from what you mentioned regarding traffic, you can change its processing in your .htaccess file:

<Files *.shtml>
ForceType application/x-httpd-php
</Files>

Or you can specify that file in particular:

<Files filename.shtml>
ForceType application/x-httpd-php
</Files>

This will tell the server to parse the .shtml like it was a .php file, and therefore any PHP commands should be processed, such as your include statement. No need to change the file extension.