SitePoint Sponsor

User Tag List

Results 1 to 3 of 3
  1. #1
    SitePoint Evangelist
    Join Date
    Dec 2008
    Location
    Plymouth, United Kingdon
    Posts
    449
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Enter the numbers below to prevent spam

    Hi,
    I have seen many site asking users/ visitors to enter a certain type of numbers before submitting a form to prevent spam attackers.

    How does it work actually? Does it really effective? Or is there any other better solutions to avoid spam attacks?

    I am trying to look for tutorial or code to write this part for my blog but still can't find any resources yet...

    Please let me know if u have any ideas.

    Many thanks,
    Lau

  2. #2
    Twitter: @AnthonySterling silver trophy AnthonySterling's Avatar
    Join Date
    Apr 2008
    Location
    North-East, UK.
    Posts
    6,111
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    The phrase you're looking to search against is Captcha.
    @AnthonySterling: I'm a PHP developer, a consultant for oopnorth.com and the organiser of @phpne, a PHP User Group covering the North-East of England.

  3. #3
    SitePoint Addict g1siberia's Avatar
    Join Date
    Dec 2008
    Posts
    236
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    and yes it dramatically reduces spam. there are ways around it but the common spammer doesnt have access to them.


Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •