php_libxml_xmlCheckUTF8  109 ext/libxml/php_libxml.h PHP_LIBXML_API int php_libxml_xmlCheckUTF8(const unsigned char *s);
php_libxml_xmlCheckUTF8  864 ext/soap/php_encoding.c 	if (!php_libxml_xmlCheckUTF8(BAD_CAST(str))) {