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  1. #1
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    Numerical Capatcha help please :)

    Hi,

    I need to install a basic numerical capatcha (nothing to bulky though) I have tried a few and i get the form to submit but it doesn't seem to check the capatcha to see if it is correct or not. Can any one help me please as I'm going crazy going around in circles.

    The site is here (stripped out top of template for now to make it less confusing! and was also change to the .PHP extension when trying the capatcha's i tried):

    http://scriptdemo.co.uk/dave/GTCA/contact-cbf.html

    I would ideally like it just above the submit button please.

    Hope you can help
    Many thanks
    Joe

  • #2
    Master Coder mlseim's Avatar
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    I personally hate captchas, because I can't read the numbers/letters.

    Here's another method:
    http://docs.jquery.com/Tutorials:Saf...thout_CAPTCHAs

    To answer your current question though ...
    You should post the script(s) you did of a captcha that fails.
    The script you posted above has no captcha.


    .

  • #3
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    Quote Originally Posted by mlseim View Post
    I personally hate captchas, because I can't read the numbers/letters.

    Here's another method:
    http://docs.jquery.com/Tutorials:Saf...thout_CAPTCHAs

    To answer your current question though ...
    You should post the script(s) you did of a captcha that fails.
    The script you posted above has no captcha.
    .
    I'm really with you on this one. Writing a good captcha script
    that humans would be able to live with would be a boon for
    humanity. However it needs to make little image files, so for
    php it would need to be written for both imagemagick and GD,
    because not everyone has either. I tried using .svg files but
    it's too easy to read the code. An alternative to those would be
    using positioned divs as bitmaps, but it's complicated and
    messy, and you would need to have arrays of the bitmap
    images to call. It's a big job writing all the code in any case.

    PS: I just thought of a way to do it with .svg files that would
    work. Use polylines to draw the letters.
    Last edited by DrDOS; 09-11-2012 at 07:17 PM.

  • #4
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    I hate captchas as well as the letters are often difficult to read. I just ask "what day was yesterday?"
    "I'm here to save your life. But if I'm going to do that, I'll need total uninanonynymity." Me Myself & Irene.
    Validate your HTML and CSS

  • #5
    Super Moderator Inigoesdr's Avatar
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    Quote Originally Posted by AndrewGSW View Post
    I hate captchas as well as the letters are often difficult to read. I just ask "what day was yesterday?"
    Depends on what time it is and what time zone the server & the user are in.

  • #6
    Senior Coder
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    Quote Originally Posted by Inigoesdr View Post
    Depends on what time it is and what time zone the server & the user are in.
    He,he, but they can have another go if they're "a bit lost"
    "I'm here to save your life. But if I'm going to do that, I'll need total uninanonynymity." Me Myself & Irene.
    Validate your HTML and CSS

  • #7
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    Hey Thanks alot for the replies.

    Unfortunately the person I'm helping wants a capatcha installed (i Said the same thing that it drives you crazy!!!!!

    What is the best way to go about attaching this as I try to use code tags and it says there is to many characters. Should I cut it in half or do something else?

    Many thanks
    Joe
    Last edited by Gibson; 09-12-2012 at 09:25 AM.

  • #8
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    HI again,

    I have uploaded the PHP form and form handler script in a html file so you can view the script as I couldn't upload it here:

    FORM - http://scriptdemo.co.uk/formscript.html

    PHPScript - http://scriptdemo.co.uk/phpscript.html


    obviously when the forms are working they are in PHP files etc

    Many thanks
    Joe

  • #9
    God Emperor Fou-Lu's Avatar
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    My preference with generic captcha's is to simply create an image which has randomized other images within it. Then I show another picture and ask them how many of that they see. So if I used fruit, and had an image randomly with 4 strawberries and 2 bannanas, I'd ask them how many banana's are in it.
    Some captcha's are more designed for the target audience. I wrote one once that presented calculus equations and asked for the results. That was obviously more designed to keep us mathematically challenged people from registering :P


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