That sounds like a good first link in the chain. If you are receiving all your input through forms from UTF-8 declared pages, then you are only receiving UTF-8 data and you can treat it that way, ignoring all other encodings and definitely have no need to guess. If that’s all true and you’re having problems, probably you are not decoding correctly from the first step to the next processing steps. We’d need more info about the full processing chain to guide you there. This is overwhelming—and overkill because most basic processing chains don’t need to consider most of it—but it is the Rosetta Stone for the issues: Why does modern Perl avoid UTF-8 by default?

In reply to Re^3: Perl detect utf8, iso-8859-1 encoding by Your Mother
in thread Perl detect utf8, iso-8859-1 encoding by swiftlet

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