about t hese %0,%1 ,etc

[zhu1230]

what does these "%0","%1" meaning?
in this "httpd.conf"??
and those can be used in "open_basedir *****"??????
i am isp,and i want make the <virtualhost> is one ,instead of many much~~~~~
please help me!!thank you!!!
my english is poor ,sorry!!
🙂
chinese boy

[fureszpeter]

http://httpd.apache.org/docs/mod/mod_vhost_alias.html

the whole name
1
the first part
2
the second part
-1
the last part
-2
the penultimate part
2+
the second and all subsequent parts
-2+
the penultimate and all preceding parts
1+ and -1+
the same as 0