xmlSetStructuredErrorFunc  922 ext/libxml/libxml.c 	xmlSetStructuredErrorFunc(NULL, NULL);
xmlSetStructuredErrorFunc  989 ext/libxml/libxml.c 		xmlSetStructuredErrorFunc(NULL, NULL);
xmlSetStructuredErrorFunc  996 ext/libxml/libxml.c 		xmlSetStructuredErrorFunc(NULL, php_libxml_structured_error_handler);