✔ imap_body formatiert und mit Umlauten ausgeben

function checkbody($body,$struct)
{
	global $mailbox;
	if ($struct->subtype!='PLAIN')
		{
			if ($struct->parts[0]->encoding==3)
				{
					$body=base64_decode($body);
				}
			if ($struct->parts[0]->encoding==4)
				{
					$body=quoted_printable_decode($body);
				}
		}
	else
		{
			if ($struct->encoding==3)
				{
					$body=base64_decode($body);
				}
			if ($struct->encoding==4)
				{
					$body=quoted_printable_decode($body);
				}
		}
	$body=nl2br(htmlentities($body));
	if ($struct->subtype=='MIXED')
		{
			$body.="\n";
			for ($part=1;$part<count($struct->parts);$part++)
				{
					print_r($struct->parts[$part]);
					if ($struct->parts[$part]->type!=2)
						{
							$body.="\t";
							$body.='<a href="download-attachment.php?mailbox='.$mailbox.'&amp;msgid='.$_GET['show'].'&amp;part='.$part.'">&lt;&lt;'.$struct->parts[$part]->dparameters[0]->value.'&gt;&gt;</a>';
						}
				}
		}
	return $body;
}

$struct=imap_fetchstructure($mbox,$_GET['show']);
$body=imap_fetchbody($mbox,$_GET['show'],1);
$body=checkbody($body,$struct);
echo $body;

<?php

	// <url:http://www.mhonarc.org/~ehood/MIME/MIME.html>

	function handleValue($string)
	{
		$pattern = '=\?([^?]+)\?([bq])\?([\x21-\x3E\x40-\x7E]+)\?=';
		$string = preg_replace('/('.$pattern.')(?:\x09|\x0A|\x0D|\x20)+('.$pattern.')/is', '\1\5', $string);
		return preg_replace('/'.$pattern.'/eis', 'decodeValue("\1", strtolower("\2"), "\3")', $string);

	}

	function decodeValue($charset, $encoding, $string)
	{
		if( strlen($string) <= 0 ) {
			return false;
		}
		switch( strtolower($encoding) ) {
			case 'b':
				$string = base64_decode($string);
				break;
			case 'q':
				$string = quoted_printable_decode($string);
				break;
			default:
				return false;
		}
		if( strtolower($charset) == 'utf-8' && strtolower($charset) != ini_get('default_charset') ) {
			$string = utf8_encode($string);
		}
		return $string;

	}

?>