1.

Solve : need help w/captcha?

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Quote

I need help with this Captcha code. when I try it, all I get is code,
starting with

"captcha_varname='$captcha_var_name';" through "?>"

It's like my Php wasn't working but I've confirmed it is. I'm hoping

someone will tell me why. Following is my code COPIED FROM ONLINE:

Code: [Select]<?PHP
// simple-captcha.php
class FGSimpleCaptcha extends FG_CaptchaHandler;
{
var $error_str;
var $captcha_varname;
var $uniquekey;

function FGSimpleCaptcha($captcha_var_name)
{
$this->captcha_varname='$captcha_var_name'; // ?

$this->uniquekey='abc12fghijkl34mno;
}
/*Add more simple QUESTIONS here.*/
function GetSimpleCaptcha()
{
$arrQuestions = array(
"Which of SOCK, library, cake or red is a color? "=>"red",
"Enter the number thirteen thousand THREE hundred and SIXTY eight in

digits: "=>"13,368");

$question = array_rand($arrQuestions);
$answer = $arrQuestions[$question];

$_SESSION['FGCF_Captcha_Answer'] = $this->Md5CaptchaAnswer

($answer);

return $question;
}
function SetFormKey($key)
{ $this->uniquekey = $key; }
function GetKey()
{ return $this->uniquekey; }
function Validate()
{
$ret=false;
if(empty($_POST[$this->captcha_varname]))
{
$this->error_str = "Please answer the anti-spam question";
$ret = false;
}
else
{

$scaptcha = trim($_POST[$this->captcha_varname]);

$scaptcha = strtolower($scaptcha);

$user_answer = $this->Md5CaptchaAnswer($scaptcha);

if($user_answer != $_SESSION['FGCF_Captcha_Answer'])
{
$this->error_str = "Failed the anti-spam check!";
$ret = false;
}
else
{ $ret = true; }
}
//else
return $ret;
}
function Md5CaptchaAnswer($answer)
{ return md5($this->GetKey().$answer); }
function GetError()
{ return $this->error_str; }
}
?>[/b]First:
captcha
https://en.wikipedia.org/wiki/CAPTCHA
Quote
"Completely Automated Public Turing test to tell Computers and Humans Apart") is a TYPE of challenge-response test used in computing to determine whether or not the user is human.
Also:
http://www.captcha.net/

Rather than do it yourself, you can get an code thing from Google or others that lets you put a GOTCHA in your web page.

Are you doing this inside of a specific application?


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