/**
* Make a string containing HTML safe for use in a XML document
* Tags are stripped, entities are normalized and named entities are
* converted to numeric entities.
*/
function stringToXML($string)
{
$string = stringStripTags($string);
$string = entity::named_to_numeric($string);
$string = entity::normalize_numeric($string);
if (strtoupper(_CHARSET) == 'UTF-8') {
$string = entity::numeric_to_utf8($string);
}
$string = entity::specialchars($string, 'xml');
return $string;
}