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  • mb_decode_mimeheader()

    (PHP 4 >= 4.0.6, PHP 5, PHP 7)

    解码 MIME 头字段中的字符串

    说明

    mb_decode_mimeheader(string $str): string

    解码 MIME 头中编码过的字符串$str

    参数

    $str

    要解码的string。

    返回值

    以内部(internal)字符编码解码的string。

    参见

    This function ignores any encoded-word specified in a character set not supported by the mbstring extension (e.g. Arabic windows-1256). Such encoded-words pass straight through.
    RFC2047 doesn't specify the behaviour, but common agents such as Gmail, Windows Mail, etc. DO NOT ignore such encoded words. They are decoded as if they were declared to be in the local character set. 
    Be aware of this idiosyncrasy.
    Using quoted-printable-encoding the hex-numbers must be written in uppercase letters!
    Works: =?iso-8859-1?q?=3F=3F=3F?=
    Fails: =?iso-8859-1?q?=3f=3f=3f?=
    See also the following functions which may work better in some cases:
    iconv_mime_decode() - http://php.net/manual/function.iconv-mime-decode.php
    imap_utf8() - http://php.net/manual/function.imap-utf8.php