As an example, in the PHPRunner manual, sample events > appearance > "Show data from master table on detail add", the PHP code uses Echo to output additional information onto the page.
If you examine the generated page that's output to the browser you see:
the additional text I output from the echo statement<html lang="en">
<head><title>MyDetailPage</title>...etc
The echo text is literally the first thing output, before the <html.. Maybe that's fine for debugging, but not for actual use in a multi-browser long term use situation.
Can someone be so kind as to provide an example of the very same event functionality, but with generated html code that is valid, where the additional text is inside the page, maybe even after the style statements, could be in the head or at the start of the body maybe?