Can't escape apostrophe... Any ideas?

[eluser]dallen33[/eluser]
I figured out how to fix it by doing a find and replace.

Code:

$search = array('’');
        $replace = array('\'');
        $notes_cleaned = html_entity_decode(str_replace($search, $replace, htmlentities($notes)));

Is this a bug in CodeIgniter? It's always done a great job of escaping characters, but this one hasn't worked at all. But now that I do a search and replace, it works flawlessly.

Maybe this'll help someone else out in the future!

EDIT: Just FYI, the character that wasn't escaping is a Word doc apostrophe. It has an HTML number of ’. Someone was copying text from a Word doc and pasted it in a textarea.