|
|
Posted by Peter Jay Salzman on 12/17/05 19:07
I'm writing a blogging app that uses an image file of a short string that
users need to type in to comment. I've heard it called a "captcha" system.
The problem is that the file that creates string and the image of the string
can't access $_SESSION, and so has no way of passing the string to the
receiving form.
view_by_permalink.php (Smarty template, actually):
Verification String:
<img src="captcha2.php?{$sessionName}={$sessionId}" />
Enter the string in the image:
<form action="add.comment.php" method="post">
<input type="text" name="userCaptchaInput" />
</form>
captcha2.php:
// Create the string.
(snip)
// Define colors and create the image.
(snip)
imagestring ($image, 5, 1, 1, $cmntPass, $colorBlue);
ImagePNG( $image );
ImageDestroy( $image );
session_id( $_REQUEST['PHPSESSID'] );
start_session();
$_SESSION['captcha'] = $cmntPass;
add_comment.php:
echo '<pre>'; print_r($_SESSION); echo '</pre>';
echo '<pre>'; print_r($_POST); echo '</pre>';
exit;
The problem is that I haven't found a way to send the random string from
captcha2.php to add_comment.php.
I've tried and tried, but I can't seem to access $_SESSION variables in
captcha2.php. I think sending the image somehow interfers with setting the
session.
How can I start a session and set up a session variable from captcha2.php?
Thanks!
Pete
Navigation:
[Reply to this message]
|