Need 'CAPTCHA' Code

[shah_ankitb]

Can any body gives me WebLink or Code of 'Captcha',there r many sites where i have find the Captcha code. But i want the code that will be Small & Easy to Undestand. If u have that type of WebLink which is easy to understand & also minimize my space of code. Then please reply as soon as possible. Thanx in Advance.

[msd]

You can build it yourself:- generate random text and put it in a session- put the text in an image (http://www.php.net/manual/en/function.imagecreate.php)- after submit, check if users' code matches to the one in the sessionStart on these 3 major steps and ask for details when needed.After this, you'll make more advanced captcha codes, with colors and various backgrounds to make it harder for the bots to read it.

[vijay]

Hi..Use the following code... and modify according ur req..

<?phprequire_once("functions.php");//_pr(gd_info());//$size = getimagesize("./image/Blue hills.jpg");//_pr($size,1);$uid=uniqid();$random_str=substr($uid,-6);header("Content-type: image/png");$im = @imagecreate(50, 30)    or die("Cannot Initialize new GD image stream");$w   = imagecolorallocate($im, 255, 255, 255);$red = imagecolorallocate($im, 255, 0, 0);$background_color = imagecolorallocate($im, 255, 255, 255);$text_color = imagecolorallocate($im, 233, 14, 91);$black = imagecolorallocate($im, 0, 0, 0);// prints a black "P" in the top left corner//imagechar($im, 1, 0, 0, $random_str, $text_color);imagestring($im, 5, 5, 5, $random_str, $text_color);imagepng($im);imagedestroy($im);?>

Regards,Vijay