remove empty tags from wordpress shortcodes via a php functon

Question

Looking for a php function (non-jQuery or wpautop modification) approach to remove

from within wordpress.

I tried this but it does not w

Answer 1

maybe a regex could work:

$string=preg_replace_('/
\s*
/', '', $string);

That should replace any

with nothing or just whitespaces in it to nothing, thus removing them.

When applying regex to HTML code it's a good idea to remove the \r\n of the HTML first, since they stop the regex from working.