Example Error Log File
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necessary to get feedback about the activity and performance of the server as well as example log file format any problems that may be occurring. The Apache HTTP Server provides very robocopy log file example comprehensive and flexible logging capabilities. This document describes how to configure its logging capabilities, and how to understand java log file example what the logs contain. Overview Security Warning Error Log Per-module logging Access Log Log Rotation Piped Logs Virtual Hosts Other Log Files See alsoComments Overview Related ModulesRelated Directivesmod_log_configmod_log_forensicmod_logiomod_cgi The Apache HTTP Server provides a variety of different mechanisms for logging everything that happens on your server, from the initial request, through the URL mapping process, to the final resolution of the connection, including any errors that may have occurred in the process. In addition to this, third-party modules may provide logging capabilities, or inject entries
Grep A Log File
into the existing log files, and applications such as CGI programs, or PHP scripts, or other handlers, may send messages to the server error log. In this document we discuss the logging modules that are a standard part of the http server. Security Warning Anyone who can write to the directory where Apache httpd is writing a log file can almost certainly gain access to the uid that the server is started as, which is normally root. Do NOT give people write access to the directory the logs are stored in without being aware of the consequences; see the security tips document for details. In addition, log files may contain information supplied directly by the client, without escaping. Therefore, it is possible for malicious clients to insert control-characters in the log files, so care must be taken in dealing with raw logs. Error Log Related ModulesRelated DirectivescoreErrorLogErrorLogFormatLogLevel The server error log, whose name and location is set by the ErrorLog directive, is the most important log file. This is the plac
Errors Exceptions Generators References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters
Sample Log File
Supported Protocols and Wrappers Security Introduction General considerations Installed log file sample download as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security apache access log format Error Reporting Using Register Globals User Submitted Data Magic Quotes Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with https://httpd.apache.org/docs/2.4/logs.html XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Safe Mode Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Credit Card Processing Cryptography Extensions Database http://php.net/manual/en/function.error-log.php Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation Keyboard Shortcuts? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search(current page) / Focus search box error_reporting » « error_get_last PHP Manual Function Reference Affecting PHP's Behaviour Error Handling Error Handling Functions Change language: English Brazilian Portuguese Chinese (Simplified) French German Japanese Korean Romanian Russian Spanish Turkish Other Edit Repo
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company http://stackoverflow.com/questions/3531703/how-to-log-errors-and-warnings-into-a-file Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs http://www.apacheviewer.com/log-files/ Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to log errors and warnings into a file? up vote 118 down vote favorite 33 How to turn on all error log file and warnings and log them to a file but to set up all of that within the script (not changing anything in php.ini). I want to define a file name and so that all errors and warnings get logged into it. php error-handling share|improve this question asked Aug 20 '10 at 14:15 Gorep 594253 add a comment| 5 Answers 5 active oldest votes up vote 200 down vote Use the following code: ini_set("log_errors", 1); ini_set("error_log", log file example "/tmp/php-error.log"); error_log( "Hello, errors!" ); Then watch the file: tail -f /tmp/php-error.log Or update php.ini as described in this blog entry from 2008. share|improve this answer edited Apr 7 '13 at 5:35 Dave Jarvis 16.5k24106204 answered Aug 20 '10 at 14:32 Aman 2,4231815 30 ini_set does only work if that code is executed. Not useful for code that has parse errors because the error will be before the code is executed. Instead write those changes into the php.ini. –hakre Apr 16 '13 at 23:31 7 If you can't edit php.ini, you should be able to add this in the .htaccess : php_flag log_errors on php_value error_log /home/path/public_html/domain/PHP_errors.log. See perishablepress.com/… –Matthieu Jan 8 '14 at 8:47 I have a question, how to get the error.log file to get created in my htdocs folder instead? –Tommy Mar 5 '14 at 21:51 I guess you just change the folder from tmp/php-error.log to which ever location you desire? –Luke Apr 16 '14 at 12:37 This crashes my PHP in 5.4.0 –Supuhstar May 10 '14 at 3:05 | show 1 more comment up vote 53 down vote See error_log — Send an error message somewhere Example error_log("You messed up!", 3, "/var/tmp/my-errors.log"); You can customize error handling with your own error handlers to call this function for you whene
logging formats are the NCSA (Common or Combined) used mostly by Apache and the W3C standard used by IIS. These formats will be explain in more detail below. APACHE LOG FILES One of the many pieces of the Website puzzle is Web logs. Traffic analysis is central to most Websites, and the key to getting the most out of your traffic analysis revolves around how you configure your Web logs. Apache is one of the most, if not the most powerful open source solutions for Website operations. You will find that Apache's Web logging features are flexible for the single Website or for managing numerous domains requiring Web log analysis. For the single site, Apache is pretty much configured for logging in the default install. The initial httpd.conf file (found in /etc/httpd/conf/httpd.conf in most cases) should have a section on logs that looks similar to this (Apache 2.0.x), with descriptive comments for each item. Your default logs folder will be found in /etc/httpd/logs . This location can be changed when dealing with multiple Websites, as we'll see later. For now, let's review this section of log configuration. ErrorLog logs/error_log LogLevel warn LogFormat "%h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i"" combined LogFormat "%h %l %u %t "%r" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent CustomLog logs/access_log combined Error Logs The error log contains messages sent from Apache for errors encountered during the course of operation. This log is very useful for troubleshooting Apache issues on the server side. Apache Log Tip: If you are monitoring errors or testing your server, you can use the command line to interactively watch log entries. Open a shell session and type "tail ?f /path/to/error_log" . This will show you the last few entries in the file and also continue to show new entries as they occur. There are no real customization options available, other than telling Apache where to establish the file, and what level of error logging yo