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Request #40462 Add a mode to lowercase header names in iconv_mime_decode_headers()
Submitted: 2007-02-13 14:34 UTC Modified: 2021-03-03 13:36 UTC
Votes:3
Avg. Score:4.0 ± 0.8
Reproduced:2 of 2 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: php-bug-0702 at nico dot edtinger dot at Assigned:
Status: Open Package: ICONV related
PHP Version: 5.2.1 OS: -
Private report: No CVE-ID: None
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 [2007-02-13 14:34 UTC] php-bug-0702 at nico dot edtinger dot at
Description:
------------
In RFC 822 all header names are defined as case independent. Therefore it would be useful if a mode exists that lowercases all header names and also merge multiple headers with the lowercased name in iconv_mime_decode_header().

It is possible to do that after iconv_mime_decode_header(), but merging multiple headers needs a fair amount of code, which is also already in iconv_mime_decode_header().

Reproduce code:
---------------
$message = <<<ETX
received: line 1
RECEIVED: line 2
Received: line 3
Subject: test
ETX;

var_dump(iconv_mime_decode_headers($message, ICONV_MIME_DECODE_LOWER));

Expected result:
----------------
array(2) {
  ["received"]=>
  array(4) {
    [0]=>
    string(6) "line 1"
    [1]=>
    string(6) "line 2"
    [2]=>
    string(6) "line 3"
    [3]=>
    string(6) "line 4"
  }
  ["subject"]=>
  string(4) "test"
}

Actual result:
--------------
// currently not possible - with the default mode:
array(4) {
  ["received"]=>
  string(6) "line 1"
  ["RECEIVED"]=>
  string(6) "line 2"
  ["Received"]=>
  array(2) {
    [0]=>
    string(6) "line 3"
    [1]=>
    string(6) "line 4"
  }
  ["Subject"]=>
  string(4) "test"
}


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 [2016-08-05 00:15 UTC] cmb@php.net
-Package: Feature/Change Request +Package: ICONV related
 [2021-03-03 13:36 UTC] cmb@php.net
Ugh, yeah, that's bad: <https://3v4l.org/G0FS2#v730>.

At least it is documented now:
<https://github.com/php/doc-en/commit/d7dbb4196a9aa0f95732f0a19106ee6db51f0bf9>.
 
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