anti-spam-anti-bot

[elewho]

how about Word Verification to prevent automated registrations as in yahoo paypal and others.

-the user should type the word/number he see in the image.
-without useing php gd.

[andelal]

I had this feature in mind, but it would have needed the gd library, so I didn't develope it.

Alex

[elewho]

i spent an houre and some min. searching for "prevent automated registrations" without gd!

i got these sesults, i hope they are usefull:

http://www.vbulletin.org/forum/showthread/t-48443.html (Text-only version) u need to register to get it!

http://www.horobey.com/demos/codegen/ (GD)

http://www.experts-exchange.com/Web/Web ... 67469.html (GD)

http://www.fatelords.com/private/antisc ... class.phps (GD)

many php have gd, option for admin to disable anti-bot incase he do not have gd.

[Guest]

(zlib)
To get the best from this Mod you should be running PHP4 and have the zlib module installed and loaded. It is quite common for zlib to be installed by default. If you are unsure whether it is please check with your hosting provider or review the output of phpinfo();. This Mod does not require GD, Imagemagick, NetPBM or any other module or utility. If you do not have zlib available the Mod will fall-back to a simpler output method. However this will still deter the majority of would be trouble makers.

you can find the source to prevent automated registrations without gd in phpbb2.0.5 contrib\visual_confirmation.zip

u can update your forum too, the new version can prevent the invalid_session error message.