iconv_mime_decode
(PHP 5)
iconv_mime_decode — Decodes a MIME header field
说明
string iconv_mime_decode
( string $encoded_header
[, int $mode = 0
[, string $charset = ini_get("iconv.internal_encoding")
]] )
Decodes a MIME header field.
参数
encoded_header
The encoded header, as a string.
mode
mode determines the behaviour in the event
iconv_mime_decode() encounters a malformed
MIME header field. You can specify any combination
of the following bitmasks.
Bitmasks acceptable to iconv_mime_decode()
Value
Constant
Description
1
ICONV_MIME_DECODE_STRICT
If set, the given header is decoded in full conformance with the
standards defined in » RFC2047.
This option is disabled by default because there are a lot of
broken mail user agents that don't follow the specification and don't
produce correct MIME headers.
2
ICONV_MIME_DECODE_CONTINUE_ON_ERROR
If set, iconv_mime_decode_headers()
attempts to ignore any grammatical errors and continue to process
a given header.
charset
The optional charset parameter specifies the
character set to represent the result by. If omitted,
iconv.internal_encoding
will be used.
返回值
Returns a decoded MIME field on success,
or FALSE if an error occurs during the decoding.
范例
Example #1 iconv_mime_decode() example
<?php
// This yields "Subject: Prüfung Prüfung"
echo iconv_mime_decode("Subject: =?UTF-8?B?UHLDvGZ1bmcgUHLDvGZ1bmc=?=",
0, "ISO-8859-1");
?>
参见
iconv_mime_decode_headers() - 一次性解码多个 MIME 头字段 mb_decode_mimeheader() - 解码 MIME 头字段中的字符串 imap_mime_header_decode() - Decode MIME header elements imap_base64() - Decode BASE64 encoded text imap_qprint() - Convert a quoted-printable string to an 8 bit string