SEO smart plugin not working for words ending with ä, ö, å

The author is using string functions for single-byte encodings:

$url = substr($line, $lastDelimiterPos + 1 );
$keywords = substr($line, 0, $lastDelimiterPos);

But in WordPress everything is encoded in UTF-8, a multi-byte encoding. So each time you have a character in your keywords that needs more than one byte, something gets lost.

File a bug report and ask the author to read this article. He will use the mbstring functions then. Probably. 🙂

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