xml_utf8_encode   141 ext/xml/php_xml.h PHP_XML_API zend_string *xml_utf8_encode(const char *, size_t, const XML_Char *);
xml_utf8_encode  1677 ext/xml/xml.c  	encoded = xml_utf8_encode(arg, arg_len, (XML_Char*)"ISO-8859-1");