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  1. #1
    SitePoint Wizard
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    Post Is it possible using image

    Hi, To all sitepoint masters,... i saw some other website using captha for validating or putting extra security before the user can login into their website...I just what to know how can i achieve like this,i want also to put captha image but i don't know what is the logic behind on it.I hope some one will help me on this.

    Thank you in advance.

  2. #2
    Gre aus'm Pott gold trophysilver trophybronze trophy
    Pullo's Avatar
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    Hi there,

    Captchas are intended to stop spam bots misusing your contact form (for example).
    I don't see any advantage to using them on a user login.
    They are fairly simple to implement, normally using third party code or a third party service.
    Here is a list of some which are freely available: http://woork.blogspot.de/2009/02/10-...-services.html

    However, captchas present a big usability barrier for many users, so please think carefully before using them.

  3. #3
    SitePoint Wizard
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    Quote Originally Posted by Pullo View Post
    Hi there,

    Captchas are intended to stop spam bots misusing your contact form (for example).
    I don't see any advantage to using them on a user login.
    They are fairly simple to implement, normally using third party code or a third party service.
    Here is a list of some which are freely available: http://woork.blogspot.de/2009/02/10-...-services.html

    However, captchas present a big usability barrier for many users, so please think carefully before using them.
    Hi pullo, Thank you so much for the reply,..is this needed to have a capthca? where should i put captcha if this is not needed in the log-in form?...thank you in advance.

  4. #4
    Gre aus'm Pott gold trophysilver trophybronze trophy
    Pullo's Avatar
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    Hi jemz,

    Quote Originally Posted by jemz View Post
    is this needed to have a capthca? where should i put captcha if this is not needed in the log-in form?...thank you in advance.
    Captchas are a mechanism to prevent bots submitting contact forms and flooding your inbox with spam.
    AFAIK a captcha would be quite pointless in a login form.

    Have a look at this thread where (especially towards the end) captchas and their alternatives are discussed at some length:
    http://www.sitepoint.com/forums/show...u-junky-emails

    HTH

  5. #5
    SitePoint Wizard
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    Quote Originally Posted by Pullo View Post
    Hi jemz,



    Captchas are a mechanism to prevent bots submitting contact forms and flooding your inbox with spam.
    AFAIK a captcha would be quite pointless in a login form.

    Have a look at this thread where (especially towards the end) captchas and their alternatives are discussed at some length:
    http://www.sitepoint.com/forums/show...u-junky-emails

    HTH
    Hi, Thank you for this, Okay i will write back again if i have in doubt.


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