mb_encode_mimeheader
(PHP 4 >= 4.0.6)
mb_encode_mimeheader -- Encode string for MIME header
Description
string mb_encode_mimeheader ( string str [, string charset
[, string transfer-encoding [, string linefeed]]])
mb_encode_mimeheader() encodes a given string str by the
MIME header encoding scheme. Returns a converted version
of the string represented in ASCII.
charset specifies the name of the character set in which
str is represented in. The default value is determined by
the current NLS setting (mbstring.language).
transfer-encoding specifies the scheme of MIME encoding.
It should be either "B" (Base64) or "Q"
(Quoted-Printable). Falls back to "B" if not given.
linefeed specifies the EOL (end-of-line) marker with which
mb_encode_mime_header() performs line-folding (a RFC term,
the act of breaking a line longer than a certain length
into multiple lines. The length is currently hard-coded
to 74 characters). Falls back to "\r\n" (CRLF)
if not given.
Example 1. mb_encode_mimeheader() example
<?php
$name = ""; // kanji
$mbox = "kru";
$doma = "gtinn.mon";
$addr = mb_encode_mimeheader($name, "UTF-7", "Q")
. " <" . $mbox . "@" . $doma . ">";
echo $addr;
?>
Note: This function isn't designed to break lines at higher-level
contextual break points (word boundaries, etc.). This behaviour
may clutter up the original string with unexpected spaces.
See also mb_decode_mimeheader().
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