使用正则表达式解析nginx日志-优快云博客

本文链接：https://blog.youkuaiyun.com/u010073893/article/details/51136344

这篇博客介绍了如何通过正则表达式匹配和提取nginx日志中的关键信息，如IP地址、时间戳、HTTP请求类型和状态码等。示例代码展示了使用PHP进行匹配的过程，并提到了nginx的日志配置相关资料。

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分析nginx日志
$s_line = '1.202.39.44 - - [22/Mar/2016:17:12:25 +0800] "POST /auth/login HTTP/1.1" 200 261 "http://www.halfcookie.cn/auth/login" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36" "-"';
$p = '/^(\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})\s-\s(.*)\s\[(.*)\]\s"(.*)\"\s(\d{3})\s(\d+)\s"(.*)"\s"(.*)"\s\"(.*)\"$/u';
preg_match($p,$s_line,$a_match);
var_dump($a_match);
array(13) {
  [0] =>
  string(233) "1.202.39.44 - - [22/Mar/2016:17:12:25 +0800] "POST /auth/login HTTP/1.1" 200 261 "http://www.halfcookie.cn/auth/login" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36" "-""
  'ip' =>
  string(11) "1.202.39.44"
  [1] =>
  string(11) "1.202.39.44"
  [2] =>
  string(1) "-"
  'time' =>
  string(26) "22/Mar/2016:17:12:25 +0800"
  [3] =>
  string(26) "22/Mar/2016:17:12:25 +0800"
  [4] =>
  string(25) "POST /auth/login HTTP/1.1"
  'status' =>
  string(3) "200"
  [5] =>
  string(3) "200"
  [6] =>
  string(3) "261"
  [7] =>
  string(35) "http://www.halfcookie.cn/auth/login"
  [8] =>
  string(108) "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36"
  [9] =>
  string(1) "-"
}


$s_line = '1.202.39.44 - - [22/Mar/2016:17:12:25 +0800] "POST /auth/login HTTP/1.1" 200 261 "http://www.halfcookie.cn/auth/login" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36" "-"';
$p = '/^(?P<ip>\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})\s-\s(.*)\s\[(?P<time>.*)\]\s"(.*)"\s(?P<status>\d{3})\s(\d+)\s\"(.*)\"\s\"(.*)"\s\"(.*)"/u';
preg_match($p,$s_line,$a_match);
var_dump($a_match);
array(13) {
  [0] =>
  string(233) "1.202.39.44 - - [22/Mar/2016:17:12:25 +0800] "POST /auth/login HTTP/1.1" 200 261 "http://www.halfcookie.cn/auth/login" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36" "-""
  'ip' =>
  string(11) "1.202.39.44"
  [1] =>
  string(11) "1.202.39.44"
  [2] =>
  string(1) "-"
  'time' =>
  string(26) "22/Mar/2016:17:12:25 +0800"
  [3] =>
  string(26) "22/Mar/2016:17:12:25 +0800"
  [4] =>
  string(25) "POST /auth/login HTTP/1.1"
  'status' =>
  string(3) "200"
  [5] =>
  string(3) "200"
  [6] =>
  string(3) "261"
  [7] =>
  string(35) "http://www.halfcookie.cn/auth/login"
  [8] =>
  string(108) "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36"
  [9] =>
  string(1) "-"
}


解析：
?P<name> :命名捕获组

nginx配置日志文档。。
https://www.ttlsa.com/linux/the-nginx-log-configuration/

nginx日志数据提取