libxml
- libxml_clear_errors - Clear libxml error buffer
- libxml_disable_entity_loader - Disable the ability to load external entities
- libxml_get_errors - Retrieve array of errors
- libxml_get_last_error - Retrieve last error from libxml
- libxml_set_external_entity_loader - Changes the default external entity loader
- libxml_set_streams_context - Set the streams context for the next libxml document load or write
- libxml_use_internal_errors - Disable libxml errors and allow user to fetch error information as needed