How to properly display utf encoded characters on my utf-8 encoded page?

I am retrieving emails and some of my emails have utf encoded text. However even though my page is encoded as utf 8 - in some places when I try to out 开发者_Go百科put utf text I get funny characters like:

=?utf-8?B?Rlc6INqp24zYpyDYotm+INin2LMg2YXYs9qp2LHYp9uB2bkg2qnbjCDZhtmC?= 
=?utf-8?B?2YQg2qnYsdiz2qnYqtuSINuB24zaug==?=

Whereas in other areas of the same page it displays fine. What is going on?

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It's not "funny characters", those are legitimate ASCII characters. It's just that the string is MIME encoded for transport, so you'll need to put it through mb_decode_mimeheader.

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You may be seeing undecoded e-mail headers: =? is the starting delimiter, utf-8 means the text is in utf-8 and B means base-64 encoded. ?= is the ending delimiter. So, base64_decode() the part between the question marks and you'll get the content.