用php写了个正则解析nginx的access log

对于nginx的日志分析，awstats jawstats 是一个很好的解决方案 
最近有个任务需要对接口的调用做二次分析统计，于是用php写了个正则解析日志，用Highcharts报表, 

nginx.conf 对log的默认格式是这样定义的 
log_format  access '$remote_addr - $remote_user [$time_local] "$request" ' 
                            '$status $body_bytes_sent "$http_referer" ' 
                             '"$http_user_agent" $http_x_forwarded_for'; 

每行的记录大概如下 
 192.168.192.168 - - [31/Jul/2012:14:17:45 0800] "GET /a/b/c/d.txt?device_id=BF771F68-6B0C-41D0-9F7E-3A24294B17DF HTTP/1.0" 200 1039 "-" "LifeStyleTiring-Room/1.0 CFNetwork/548.1.4 Darwin/11.4.0" 
                              
每天用crontab把记录切割并解析，每次读入100行，提取有用部分预处理存入sql，为报表做准备 
目前数据量不多，还没有做性能测试 

1. [代码]用php解析nginx的访问日志

<?php
$s_line = &#39;192.168.192.168 - - [31/Jul/2012:14:17:45 +0800] "GET /a/b/c/d.txt?device_id=BF771F68-6B0C-41D0-9F7E-3A24294B17DF HTTP/1.0" 200 1039 "-" "LifeStyleTiring-Room/1.0 CFNetwork/548.1.4 Darwin/11.4.0"&#39;;
					 
$p = &#39;/^(\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})\s-\s(.*)\s\[(.*)\]\s"(.*)\"\s(\d{3})\s(\d+)\s"(.*)"\s\"(.*)\"(.*)$/u&#39;;

preg_match($p,$s_line,$a_match);
var_dump($a_match); 

//还不知道ipv6的状况会如何