The short answer is that "You can't".

A more accurate answer would mention the client side PerlScript in which case you would do something along the lines of:

<script type="text/perlscript">
mySub
</script>

[download]

Note that I've never used PerlScript so that syntax could be wrong (since very few people have browsers that support PerlScript there isn't much point in using it on the WWW).

The other answer is that you might have something that looks like HTML, but isn't really. Mason for example is a templating language which looks a lot like HTML but with a few extra bits to run Perl. In it <html> means "Output the string <html>". The end result is that you can drop Perl code into it so it looks like the HTML is executing the Perl.

Personally, I'd use a templating language like Template-Toolkit rather than trying to mix Perl and HTML into a single file.

In reply to Re: How do you run a subroutine from inside HTML code? by dorward
in thread How do you run a subroutine from inside HTML code? by coldmiser

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