Online PHP editor | rfc for F1qkV

@ 2014-07-27T02:13:37Z

<?php
function output_delimiter() {
echo "\n-----------------------------------------------------------------------------\n\n";
}

/*
* It decodes strings containig encoded words by following the steps below
* 1) Remove MIME header line breaks.
* 2) Decode encoded words by isolating pure encoded words and
* decode them with imap_utf8
*
* @param $str
*/
function imap_utf8_wrapper($str) {
$str=preg_replace('/\r\n\s/', "", $str);
return preg_replace_callback('/=\?[^?]+\?(?:Q|B)\?[^?]+\?=/',
function($matches) { return imap_utf8($matches[0]); }, $str);
}

function imap_mime_header_decode_wrapper($str) {
$arr=imap_mime_header_decode($str);
$ret="";

foreach($arr as $elem) {
if($elem->charset == 'default')
$ret.=$elem->text;
else
$ret.=iconv($elem->charset, "UTF-8", $elem->text);
}

return $ret;
}

function decode_suite($str) {
echo " iconv_mime_decode : ".iconv_mime_decode($str, ICONV_MIME_DECODE_CONTINUE_ON_ERROR, "UTF-8")."\n";
echo " mb_decode_mimeheader : ".mb_decode_mimeheader($str)."\n";
    //echo " imap_utf8_wrapper : ".imap_utf8_wrapper($str)."\n";
echo " imap_mime_header_decode : ".imap_mime_header_decode_wrapper($str)."\n";
}

function mime_encoding_decoding_test($str, $encode_method, $func) {
$str=$func($str);
echo "After $encode_method : $str\n\n";
decode_suite($str);
output_delimiter();
}

function execute_test($str) {
echo "\nBefore encoding : ".$str."\n";
output_delimiter();

$mime_test=function ($encode_method, $func) use ($str) {
mime_encoding_decoding_test($str, $encode_method, $func);
};

$prefs = array ("scheme" => "Q",
"input-charset" => "utf-8",
"output-charset" => "utf-8",
"line-break-chars" => "\r\n");
$mime_test("iconv_mime_encode Q", function($str) use ($prefs)
{ return iconv_mime_encode('From', $str, $prefs); });

$prefs['scheme']="B";
$mime_test("iconv_mime_encode B", function($str) use ($prefs)
{ return iconv_mime_encode('From', $str, $prefs); });

$mime_test("mb_encode_mimeheader Q", function($str)
{ return mb_encode_mimeheader($str, "UTF-8", "Q"); });

$mime_test("mb_encode_mimeheader B", function($str)
{ return mb_encode_mimeheader($str, "UTF-8", "B"); });
}

$str='=?utf-8?B?Q3Vyc28gZGUgVmlwYXNzYW5hOiBTdSBpbnNjcmlwY2nDs24gaGEgc2lkbyBjYW5jZWxhZGE=?=';
#$str='안녕 <user@example.com>';
mb_internal_encoding("UTF-8"); 
execute_test($str);

?>

Output for git.master, git.master_jit, rfc.property-hooks: Before encoding : =?utf-8?B?Q3Vyc28gZGUgVmlwYXNzYW5hOiBTdSBpbnNjcmlwY2nDs24gaGEgc2lkbyBjYW5jZWxhZGE=?= ----------------------------------------------------------------------------- After iconv_mime_encode Q : From: =?utf-8?Q?=3D=3Futf-8=3FB=3FQ3Vyc28gZGUgVmlwYXNzYW5hOiBTdSBpbnNjcmlw?= =?utf-8?Q?Y2nDs24gaGEgc2lkbyBjYW5jZWxhZGE=3D=3F=3D?= iconv_mime_decode : From: =?utf-8?B?Q3Vyc28gZGUgVmlwYXNzYW5hOiBTdSBpbnNjcmlwY2nDs24gaGEgc2lkbyBjYW5jZWxhZGE=?= mb_decode_mimeheader : From: =?utf-8?B?Q3Vyc28gZGUgVmlwYXNzYW5hOiBTdSBpbnNjcmlwY2nDs24gaGEgc2lkbyBjYW5jZWxhZGE=?= Fatal error: Uncaught Error: Call to undefined function imap_mime_header_decode() in /in/F1qkV:21 Stack trace: #0 /in/F1qkV(38): imap_mime_header_decode_wrapper('From: =?utf-8?Q...') #1 /in/F1qkV(44): decode_suite('From: =?utf-8?Q...') #2 /in/F1qkV(53): mime_encoding_decoding_test('From: =?utf-8?Q...', 'iconv_mime_enco...', Object(Closure)) #3 /in/F1qkV(60): {closure}('iconv_mime_enco...', Object(Closure)) #4 /in/F1qkV(77): execute_test('=?utf-8?B?Q3Vyc...') #5 {main} thrown in /in/F1qkV on line 21
Process exited with code 255.

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