xml_get_error_code  127 ext/xml/php_xml.h PHP_FUNCTION(xml_get_error_code);
xml_get_error_code  234 ext/xml/xml.c  	PHP_FE(xml_get_error_code,					arginfo_xml_get_error_code)
xml_get_error_code 1463 ext/xml/xml.c  PHP_FUNCTION(xml_get_error_code)