xmlSetStructuredErrorFunc  910 ext/libxml/libxml.c 	xmlSetStructuredErrorFunc(NULL, NULL);
xmlSetStructuredErrorFunc  983 ext/libxml/libxml.c 		xmlSetStructuredErrorFunc(NULL, NULL);
xmlSetStructuredErrorFunc  990 ext/libxml/libxml.c 		xmlSetStructuredErrorFunc(NULL, php_libxml_structured_error_handler);