Assunto de e-mail em imap aparece com códigos

var_dump( $headers );

php.net

<?php
function fix_text($var){

while(list($key,$value)=each($var)){
if(ereg("\?=",$value)){

$arrTemp=split("\?=",$value);
$arrTemp[0]=base64_decode($arrTemp[0]);
$var[$key]=join("",$arrTemp);
}}
$var=join("",$var);
}

if(ereg("=\?.{0,}\?Q\?",$var)){

$var = quoted_printable_decode($var);
$var = ereg_replace("=\?.{0,}\?[Qq]\?","",$var);
$var = ereg_replace("\?=","",$var);
}
return trim($var);
}
?>

Ex.

<?php
//For =?iso-8859-1?Q Problem

echo $title;
//show: =?iso-8859-1?Q?Boletim:_Motiva=E7=E3o
//,_Gest=E3o_&_Vendas_-_Gilcl=E9r_Regi?=
//=?iso-8859-1?Q?na?=

echo fix_text($title);
//show: na?
?>