swoole_error_log Output error messages to the log &reftitle.description; voidswoole_error_log intlevel stringmsg Output error messages to the log. &reftitle.parameters; level Log Level, constants can be used: SWOOLE_LOG_DEBUG, SWOOLE_LOG_TRACE, SWOOLE_LOG_INFO, SWOOLE_LOG_NOTICE, SWOOLE_LOG_WARNING, SWOOLE_LOG_ERROR, SWOOLE_LOG_NONE msg Message content to be written to the log. &reftitle.returnvalues; &return.void;