hii captcha

[zhangy]

Hello,

 

I have a human intelligence identifier script but I want it to generate random labels.

Preferably numbers between 1 and 10 that add together to from what will be the answer that the user enters.

<lable for="captcha>1+2=</lable>

Can anyone help?

[btherl]

rand(1,10) will give you a random number between 1 and 10.

[zhangy]

Cool thanks Btherl.

Does anyone know how to apply this; get the random numbers to add together to equal the captcha answer?

 

[Yesideez]

If you want to use an image captcha, here's one I made...

 

http://www.coderprofile.com/networks/source-codes/535/simple-but-highly-effective-captcha

[zhangy]

Thanks Yesideez,

however I still would like to know more about the method I originally posted about

[beansandsausages]

sumit like this?

 

$number1 = rand(1,10);
$number2 = rand(1,10);
$answer = $number1 + $number2;

echo "<form action=\"?mod=cat\" method=\"POST\" /> what is {$number1} + {$number2}? <input type=\"text\" name=\"asn\" id=\"asn\" /> <input type=\"submit\" value=\"submit\" /> ";



if($_GET['mod'] == "cat" ) { 
$myanswer = (int)$_POST['asn'];

if($myanswer == $answer ) { echo " Right "; } else { echo " Wrong "; } } 

 

That is the idea i would use but im not the best in the world. BUT since computers are designed to do math that would be easily cracked thus doing nothing.

[PFMaBiSmAd]

 

 

Text based math questions are very easy for php to find in the source of the page and directly solve using one built in php function without any real programming skill required and should not be used.