Apacheã¢ã¸ã¥ã¼ã«ãããã°ãåãå ´åãap_log_erroré¢æ°ã使ç¨ãã¾ãã errorã¨ããååã§ããã第2å¼æ°ãåãæ¿ãã¦debug, infoãªã©éçºä¸ã®ãã°ãåãå ´åã使ããã¾ãã ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, r->server, "url=%s", url); ããç¨åº¦ã®çµé¨ã®ããããã°ã©ããªãã°ãæ¯åãããªã«ããããã®å¼æ°ãæ¸ãã®ã¯é¢åã ã¨ãããã¨ã«æ°ã¥ãã¨æãã¾ãã ç§ãããã«å«ã«ãªãã¾ããã ã¨ããããã§ãã¤ãã®å¯å¤é·å¼æ°ã®ãã¯ããã¯ã使ã£ã¦ static void trace(request_rec* r, const char* fmt, ...) { va_list argp; char buff[4096]; va_start(argp, fmt); vsprintf(buff,
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