mb_decode_mimeheader

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

mb_decode_mimeheader — 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

mb_encode_mimeheader() - 为 MIME 头编码字符串

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User Contributed Notes 4 notes

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tomlove at gmail dot com ¶

12 years ago


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.

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Brett ¶

10 years ago


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

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hgs at cs dot columbia dot edu ¶

11 months ago


In Q encoding mode, RFC 2047 encodes spaces as _ (Section 4.2).  

mb_decode_mimeheader()

does not appear to do this. Thus, to avoid names or subjects with underscores, one needs to apply strtr() or similar function to the input string.

On the other hand, lower-case strings do now work correctly.

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Frogger2000 at gmx dot de ¶

20 years ago


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?=

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官方地址：https://www.php.net/manual/en/function.mb-decode-mimeheader.php

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PHP官方手册 - 互联网笔记

mb_decode_mimeheader

说明

参数

返回值

参见

User Contributed Notes 4 notes