(ASK) how to prevent spam ?

[weigong]

hi, how to prevent spam registering ?? i have CAPTCHA already, but still unable to prevent from spam !!

thx.

[AeroX]

Get a better capture service.
If it's junk spam (i.e. makes no scene just random symbols and stuff) then put some filtering in. (i.e if atleast 5-10% of the text don't contain A, E, I, O, or U then its rubish)
Just other stuff like that really.
or compulsary registration.

[weigong]

well, sorry. can u give an example or the script ??? please visit my forum, it's use phpbb version. so where i can change the captcha script ?