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function.mb-decode-mimeheader is not working for this output

please see related question:

http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/Q_28007323.html


manual: http://php.net/manual/en/function.mb-decode-mimeheader.php

echo mb_decode_mimeheader('=?iso-8859-1?B?RGlhbmEgQ3Jpc3TzYmFs?=');

output
Diana Cristóbal


but this input is not producing the correct output:


input:
=?KOI8-R?B?6dLJzsEg78zaz8XXwQ==?=

output:
??????????
want this output:
¿¿¿¿¿ ¿¿¿¿¿¿¿
even experts exchange will not show it when I copy paste

so I attach image

not showing in a browser
0
rgb192
Asked:
rgb192
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2 Solutions
 
Robert SchuttSoftware EngineerCommented:
Try this:
<?php
error_reporting(E_ALL);

mb_internal_encoding('UTF-8');

checkString('=?iso-8859-1?B?RGlhbmEgQ3Jpc3TzYmFs?=');
checkString('=?KOI8-R?B?6dLJzsEg78zaz8XXwQ==?=');

function checkString($s) {
	echo 'input: '.$s.'<br>';
	$s = mb_decode_mimeheader($s);
	echo 'output: '.charset_decode_utf_8($s).'<br><br>';
}

// this from: http://php.net/manual/en/function.utf8-decode.php
function charset_decode_utf_8 ($string) {
      /* Only do the slow convert if there are 8-bit characters */
    /* avoid using 0xA0 (\240) in ereg ranges. RH73 does not like that */
    if (! ereg("[\200-\237]", $string) and ! ereg("[\241-\377]", $string))
        return $string;

    // decode three byte unicode characters
    $string = preg_replace("/([\340-\357])([\200-\277])([\200-\277])/e", "'&#'.((ord('\\1')-224)*4096 + (ord('\\2')-128)*64 + (ord('\\3')-128)).';'", $string);

    // decode two byte unicode characters
    $string = preg_replace("/([\300-\337])([\200-\277])/e", "'&#'.((ord('\\1')-192)*64+(ord('\\2')-128)).';'", $string);

    return $string;
}

?>

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Robert SchuttSoftware EngineerCommented:
That decode function was in the comments in the manual of utf8_decode, apparently taken from the sources of SquirrelMail. Nice!

Important also is setting that internal encoding, could also be done in php.ini I guess.

EDIT: some more info, I tried 'everything' related to doctype, meta tags, php header setting of charset (needed according to a lot of other solutions), physical file type (needed for literals in the page) etc but took it all out and it still works, no meta, no charset header, showing cyrillic text. Just the internal encoding seems important, as well as the alternative way to handle htmlentities.
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mcnuteCommented:
I've tried a couple of things, maybe with your local server encoding in php.ini it works:

iconv_mime_decode('=?KOI8-R?B?6dLJzsEg78zaz8XXwQ==?=', 0, 'koi8-r');

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$new = mb_convert_encoding($str, 'windows-1251', 'KOI8-R');

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rgb192Author Commented:
>>robert_schutt
output good



>>I've tried a couple of things, maybe with your local server encoding in php.ini it works:

I dont understand how to make your code work
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mcnuteCommented:
Well, in my scripts I can't get the cyrillic to print out well. Whereas this guy is capable of transcoding it into cyrillic:

http://2cyr.com/decode/

Maybe he can help you with your problem.
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Robert SchuttSoftware EngineerCommented:
output good
Do you mean the output on my link? Or the code works for you? If the latter, then we're done? ;-)
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rgb192Author Commented:
thanks

I waited to see if mcnute could create php code, but provided an web link of a converter,

but robert_schutt provided the best answer because of php code in my php zone question
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