public function encodeString($str, $encoding = 'base64')
{
$encoded = '';
switch (strtolower($encoding)) {
case 'base64':
$encoded = chunk_split(base64_encode($str), 76, $this->LE);
break;
case '7bit':
case '8bit':
$encoded = $this->fixEOL($str);
// Make sure it ends with a line break
if (substr($encoded, -strlen($this->LE)) != $this->LE) {
$encoded .= $this->LE;
}
break;
case 'binary':
$encoded = $str;
break;
case 'quoted-printable':
$encoded = $this->encodeQP($str);
break;
default:
$this->setError($this->lang('encoding') . $encoding);
break;
}
return $encoded;
}