How to set the access_log format of nginx-Nginx-php.cn

How to set the access_log format of nginx

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Release： 2023-05-12 13:25:13

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Nginx access logs can be set in custom formats to meet specific needs.

Example:

示例1
    log_format combined_realip '$remote_addr $http_x_forwarded_for [$time_local]'
    '$host "$request_uri" $status'
    '"$http_referer" "$http_user_agent"';

示例2
    log_format main '$remote_addr [$time_local] '
    '$host "$request_uri" $status "$request"'
    '"$http_referer" "$http_user_agent" "$request_time"';

若不配置log_format或者不在access_log配置中指定log_format，则默认格式为：
    '$remote_addr - $remote_user [$time_local] "$request" '
    '$status $body_bytes_sent "$http_referer" '
    '"$http_user_agent";

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Common variables:

## $request_timeRequest processing time, unit is seconds, decimal form$ upstream_addrCluster polling address##$upstream_response_time$remote_user$request $http_user_agent##$http_host $host

##Variable	Description
$time_local	Local time in common log format; (server time)
$remote_addr	Client (user) IP address
$ status	Request status code, such as 200, 404, 301, 302, etc.
$body_bytes_sent	The number of bytes sent to the client, excluding the size of the response header
$bytes_sent	The total number of bytes sent to the client
$request_length	The length of the request (including request line, request header and request body)


refers to the time from when Nginx establishes a connection to the backend (php-cgi) to when it accepts data and closes the connection
is used to record the client user name
Request method (GET or POST, etc.) URL (including $request_method, $host, $request_uri)
User browser identifier
The host of the requested url address (target url address)
Equivalent to $http_host	##$http_referer
Source page, that is, which page to go to this page from. If you directly enter the URL in the browser to access it, the referer will be empty	$uri
The current URI in the request (without request parameters, the parameters are located in $args), which is different from the value of $request_uri passed by the browser, which can Modify it through internal redirection or using the index directive.
$document_uri	is equivalent to $uri
$request_uri	has more parameters than $uri, that is, $uri $args
$http_x_forwarded_for	If a proxy is used, this parameter will record the ip of the proxy server and the ip of the client

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