@NogDogApr 07.2016 — #Not all parts of your application are talking in the same character set, most likely. This can include your DB connection, the headers you're sending with the output to the browser, optional arguments to things like htmlentities(), and so forth.
@NogDogApr 07.2016 — #Wanted to post this link with my earlier reply, but it turns out my blog died after a recent WordPress update. Got it back up in a rudimentary form, so ignore the blah appearance (now a work in progress again). ?