/**
* @param string $sAttrName
* @param string $sValue
*
* @return string
*/
public static function EncodeHeaderUtf8AttributeValue($sAttrName, $sValue)
{
$sAttrName = \trim($sAttrName);
$sValue = \trim($sValue);
if (0 < \strlen($sValue) && !\MailSo\Base\Utils::IsAscii($sValue)) {
if (!empty($_SERVER['HTTP_USER_AGENT']) && 0 < \strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
$sValue = $sAttrName . '="' . \preg_replace('/[+\\s]+/', '%20', \urlencode($sValue)) . '"';
} else {
$sValue = \MailSo\Base\Utils::AttributeRfc2231Encode($sAttrName, $sValue);
}
} else {
$sValue = $sAttrName . '="' . \str_replace('"', '\\"', $sValue) . '"';
}
return \trim($sValue);
}
