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View Full Version : Security Captcha Help?



newyork
08-31-2011, 03:50 AM
Hi All,

Can you please tell me why the security captcha does not show up?

Website Address:

http://www.sunit.site50.net/contact.html

I tried the contact form and it does seem to be working other than the captcha.

Here is the security_image.php code below.

--------------------------------------------------------------

<?php session_start();
class captcha {
var $font = 5;
function random($nr) {
$letters="23456789bcdfghjkmnpqrstvwxyz";
while ($i < $nr) {
if($i==rand(0,$nr-1)) {
$text .= substr(strtoupper($letters), mt_rand(0, strlen($letters)-1), 1);
}
else
{
$text .= substr($letters, mt_rand(0, strlen($letters)-1), 1);
}
$i++;
}
return $text;
}
function captcha($width,$height,$nru) {
$text=$this->random($nru);
$image = @imagecreate($width, $height) or die('unable create image!');
$bg_col = imagecolorallocate($image, 0, 191, 255);
$txt_col = imagecolorallocate($image, 255, 255, 255);
$rand_col = imagecolorallocate($image, 0, 0, 0);
imagefill($image, 100, 100, $bg_col);
imageantialias($image, true);
imagestring($image, $this->font , rand(1, 10), rand(1,10), $text, $txt_col);
imageline($image, rand(0,$width), rand(0,$height), rand(0,$width), rand(0,$height), $rand_col);
for( $i=0; $i<6; $i++ ) {
imagefilledellipse($image, rand(0,$width), rand(0,$height), 1, 1, $rand_col);
}
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
$_SESSION['chapcha_code'] = strtolower($text);
}
}
$width='70';
$height='25';
$nru='5';
$iesire = new captcha($width,$height,$nru);
?>


--------------------------------------------------------------------------------

and the mailer.php code as well.

--------------------------------------------------------------------------------


<?php session_start();
if(isset($_POST['Submit'])) { if( $_SESSION['chapcha_code'] == $_POST['chapcha_code'] && !empty($_SESSION['chapcha_code'] ) ) {
$youremail = '';
$fromsubject = '';
$title = $_POST['title'];
$fname = $_POST['fname'];
$mail = $_POST['mail'];
$address = $_POST['address'];
$phone = $_POST['phone'];
$subject = $_POST['subject'];
$message = $_POST['message'];
$to = $youremail;
$mailsubject = 'Masage recived from'.$fromsubject.' Contact Page';
$body = $fromsubject.'

The person that contacted you is '.$fname.'
Address: '.$address.'
Phone Number: '.$phone.'
E-mail: '.$mail.'
Subject: '.$subject.'

Message:
'.$message.'

|---------END MESSAGE----------|';
echo "Thank you fo your feedback. I will contact you shortly if needed.<br/>Go to <a href='/index.php'>Home Page</a>";
mail($to, $subject, $body);
unset($_SESSION['chapcha_code']);
} else {
echo 'Sorry, you have provided an invalid security code';
}
} else {
echo "You must write a message. </br> Please go to <a href='/contact.php'>Contact Page</a>";
}
?>


------------------------------------------------------------------------------

Thank you for any help you can offer. :)

Newyork

gvre
08-31-2011, 10:10 AM
If you open http://www.sunit.site50.net/security_image.php you will see the error message "Fatal error: Call to undefined function imageantialias() in /home/a7892328/public_html/security_image.php on line 25".



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