所以,我试图获取任何以select ath_id, avg(record)
from
(select ath_id, record
from atheletes as t1
where
(select count(*) from atheletes where t1.ath_id=ath_id and record > t1.record) < 3) as d
group by ath_id;
开头并以4级深度结束的网址,以便将/ 1追加到最后,例如
'locations'
应该去
http://example.com/locations/lorem/ipsum/dolor
我有以下我认为是正确的,但似乎给了我一个无限的重定向循环:
FROM:http://example.com/locations/lorem/ipsum/dolor/1
TO:locations/(.+)/(.+)/(.+)
知道我哪里出错了吗?
答案 0 :(得分:0)
(。+)将匹配任何char直到... / dolor /。这就是为什么你可能会得到无限循环。
您可以考虑使用/ [a-z] /来解析网址中的每个子集
答案 1 :(得分:0)
问题在于您没有充分限制模式。
http://example.com/locations/lorem/ipsum/dolor/1
|||||||||| | |
locations/(.+ )/(.+ )/(.+)
http://example.com/locations/lorem/ipsum/dolor/1/1
|||||||||| | |__
|||||||||| | |
locations/(.+ )/(.+)/(.+)
http://example.com/locations/lorem/ipsum/dolor/1/1/1
|||||||||| | |__
|||||||||| | |
locations/(.+ )/(.+)/(.+)
所以替换
locations/(.+)/(.+)/(.+)
使用下列其中一项取决于使用的正则表达式方法:
locations/([^/]*)/([^/]*)/([^/]*)\z # Perl, PCRE, ...
或
locations/([^/]*)/([^/]*)/([^/]*)$ # JavaScript, ...