Are you trying to do an include as in include "filename.php";? If so, perhaps try, in filename.php, assigning the content to a variable like $incl_text = "text"; or $incl_text = <<<END (on one line) text END; (on one line), include the filename.php file in function_phpdig_form.php, and then use the $incl_text variable in place of $do_php_here; in method one of
this thread.