Help needed Preventing Automated Registrations

Does anyone know of a good download of Alpha-Numeric images that contain codes to prevent automated registraions. I would apreciate it.

 

These are called CAPTCHAs. Google for this to find a variety of scripts to generate them. I've also written one myself once, here's the code:

<?php
header('Content-type: image/png');
header('Cache-Control: no-cache, must-revalidate');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); 

$chars = chars(4);

$im = imagecreatetruecolor(100, 60);

$bgcolor = imagecolorallocate($im, 0, 255, 0);
imagefill($im, 0, 0, $bgcolor);

$fgcolor = imagecolorallocate($im, 255, 0, 0);
$angle = rand(-30,0);

imagefttext($im, 30, $angle, 0, 30, $fgcolor, 'garabold.ttf', $chars);
imagefttext($im, 30, $angle, 1, 31, $bgcolor, 'garabold.ttf', $chars);

imagepng($im);
imagedestroy($im);

function chars($number){
    $hash = 'abcdefghijklmnopqrstuvwxyz';
    for($i=0; $i<$number; $i++){
        $result .= substr($hash, rand(0, 25), 1);
    }
    return $result;
}
?>

PHP:

garabold.ttf is Garamond Bold, probably present on your computer.

 

A simple captcha I used was one which asked simple questions. Those don't even have to be an image. You just need to have a lot of questions.

 

Exactly. Like:

1. Are you a bot? Y/N

2. If answer = Y, goto 1

JapaneseCupid, is this for a forum or something similar? If so, what software are you using?

 

what about "who is better looking?" test