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参看N久前写的一篇文章：http://blog.5ifd.com/post/1253/

朋友要匹配：123.html
code:
<?php $str_in = "http://www.test.com/123.html"; preg_match_all("/http:\/\/www.test.com\/(.*?).html/i",$str_in,$str_out); print_r($str_out); ?>

result:
Array
(
    [0] => Array
        (
            [0] => http://www.test.com/123.html
        )

    [1] => Array
        (
            [0] => 123
        )

)
取得$str_out的$str_out[1][0]即可！

第一示例：
可以用来简化Nginx的$1,$2。
rewrite "^/(\d*)/trends-list-(\w*)\.html$" /index.php?d=front&c=index&a=trends&uid=$1&page=$2&tag=list&max_age=1800 last;  
<?php $patter = '%(\d*)/trends-list(-((\w*)))?%'; $patter = '%(\d*)/trends-list-(\w*)%'; preg_match($patter,"http://jackxiang.com/12204886/trends-list-4.html",$matches); print_r($matches );

---------- 调试PHP ----------
Array
(
    [0] => 12204886/trends-list-4
    [1] => 12204886
    [2] => 4
)

第二示例：
rewrite "^/(\d*)/friend-(myfans|myfollow)-(\w*)\.html$" /index.php?d=front&c=index&a=friend&uid=$1&tag=$2&page=$3&max_age=1800 last;
<?php $patter = '%/(\d*)/friend-(myfans|myfollow)-(\w*)\.html%'; preg_match($patter,"http://my.xiyou.cntv.cn/30991799/friend-myfollow-5.html",$matches); print_r($matches );

---------- 调试PHP ----------
Array
(
    [0] => /30991799/friend-myfollow-5.html
    [1] => 30991799
    [2] => myfollow
    [3] => 5
)


第三示例：
rewrite "^/list-(\d*)-(\d*)-(\d*)-(.*)\.html$"  /index.php?d=site&c=list&a=index&type=$1&label=$2&period=$3&name=$4 last;
$patter = '%^/list-(\d*)-(\d*)-(\d*)-(.*)\.html$%'; preg_match($patter,"/list-0-0-1-测试.html",$matches); print_r($matches );

---------- 调试PHP ----------
Array
(
    [0] => /list-0-0-1-测试.html
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 测试
)
______________________________________________________________
接合Nginx的urlrewrite进行$1,$2类似配置的方法：
通过print_r打印数组是不错的调试nginx重写的适用方法：
server       {           listen       80;           server_name  jackxiang.com;           index index.html index.htm index.php;           root  /data/htdocs/tools.xiyou.cntv.cn;           autoindex on;         autoindex_exact_size off;         autoindex_localtime on;         #http://jackxiang.com/12204886/trends-list-4.html                                                                                                                           location / {             rewrite "^/(\d*)/friend-(myfans|myfollow)-(\w*)\.html$" /index2.php?d=front&c=index&a=friend&uid=$1&tag=$2&page=$3&max_age=1800 last;             rewrite "^/(\d*)/trends-list-(\w*)\.html$" /index2.php?d=front&c=index&a=trends&uid=$1&page=$2&tag=list&max_age=1800 last;         }         location ~ .*\.(php|php5)?$           {             fastcgi_pass  127.0.0.1:9000;             fastcgi_index index.php;             include fcgi.conf;           }         access_log /data/logs/access_t43.log;     }

index2.php代码如下：
print_r($GET);
http://jackxiang.com/12204886/trends-list-4.html
Array
(
    [d] => front
    [c] => index
    [a] => trends
    [uid] => 12204886
    [page] => 4
    [tag] => list
    [max_age] => 1800
)

http://jackxiang.com/30991799/friend-myfollow-5.html
Array
(
    [d] => front
    [c] => index
    [a] => friend
    [uid] => 30991799
    [tag] => myfollow
    [page] => 5
    [max_age] => 1800
)

作者：jackxiang@向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除
地址：https://jackxiang.com/post/1950/
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