Hi Thierry, > I would like to verify my forms are not submitted by robots. > Hence, I would like to place a coded image that only human > can read and enter in a field for verification. > > Anyone knows where I can find ASP or PHP code for generating > such code image?
The image itself is rather simple to generate in PHP or ASP.net, validation of the form, however, can be a little trickier. You'll need to have the code you pushed to the image also be validated *before* and *after* form submission, to ensure that Joe's Robot doesn't simply determine /one/ of the keys used to accurately pass the form and then store that and change fields to those values for future use. More information about this here: http://everything2.com/index.pl?node_id=1399706 Regards, Shawn K. Hall http://12PointDesign.com/ http://ReliableAnswers.com/ '// ======================================================== Patience is in my blood, and I need a transfusion. --------------------------------------------------------------------- Home : http://groups.yahoo.com/group/active-server-pages --------------------------------------------------------------------- Post : [email protected] Subscribe : [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] --------------------------------------------------------------------- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/active-server-pages/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
