Is there a way I can use
add_filter('the_content', 'my_function'); to only act upon
the_excerpt is displayed on a page in addition to
the_content() my function is executed twice.
I want it to only run on
is_single() pages once, but i can't figure out any other hooks that always appear on a single page and only once. Any help appreciated.
I found a reference to the problem here: http://wordpress.org/support/topic/239391?replies=4#post-1181669 but I'm not sure of the answer.