(PHP 4 >= 4.0.6, PHP 5, PHP 7)
mb_encode_mimeheader — Encode string for MIME header
mb_encode_mimeheader ( string $string [, string|null $charset = null [, string|null $transfer_encoding = null [, string $newline = "\r\n" [, int $indent = 0 ]]]] ) : string
Encodes a given string string by the MIME header encoding scheme.
string
The string being encoded. Its encoding should be same as mb_internal_encoding().
charset
charset specifies the name of the character set in which string is represented in. The default value is determined by the current NLS setting (mbstring.language).
transfer_encoding
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.
newline
newline specifies the EOL (end-of-line) marker with which mb_encode_mimeheader() 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.
indent
Indentation of the first line (number of characters in the header before string).
A converted version of the string represented in ASCII.
| Version | Description |
|---|---|
| 8.0.0 | charset and transfer_encoding are nullable now. |
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.
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.mb-encode-mimeheader.php