The method you're asking for seems like a convoluted way to deal with the problem space you've reported.

How do you view nodes here?

With a browser.

So why not do the same with your challenge?

• Write your script to accept input (which, I gather, is supposed to be valid html) and to write that to a file (naming could be as simple as \d.html with incrementing of the digits.
• Expand the script to invoke the browser of your choice on file:///\d.html.
• View it in the browser.

Or, is there some constraint you didn't mention or that I missed?