where can i find info about POSIX Extend

[Anon]

where can i find some good "howto" about POSIX Extended regular expression functions.

i'm looking for something that explains deep. the PHP book i bought explains only very simple things and the online help seems to be of very little use if you don't know POSIX or whatever that is.

thanks.

[rsterbin]

http://www.dc.turkuamk.fi/docs/gnu/rx/rx_3.html

is a reference dealing with POSIX regexs--not related to PHP, but detailed nonetheless.

-Reha