<?php
/**
 * HTML_QuickForm_CAPTCHA example - Image generator
 *
 * @category   HTML
 * @version    CVS: $Id$
 * @author     Philippe Jausions <Philippe.Jausions@11abacus.com>
 * @package    HTML_QuickForm_CAPTCHA
 * @subpackage Examples
 * @copyright  2006 by 11abacus
 * @license    LGPL
 * @filesource
 * @see        qfcaptcha_form.php
 * @link       http://pear.php.net/package/HTML_QuickForm_CAPTCHA
 */

// Require the class before opening the session
// so the instance unserialize properly
require_once 'Text/CAPTCHA.php';
require_once 'Text/CAPTCHA/Driver/Image.php';


// Turn off to stop session data being printed to -debug.txt
define("CAPT_IMG_DEBUG", true);

session_start();

header('Content-Type: image/jpeg');

$sessionVar = (empty($_REQUEST['var']))
              ? '_HTML_QuickForm_CAPTCHA'
              : $_REQUEST['var'];

// Force a new CAPTCHA for each one displayed
$_SESSION[$sessionVar]->setPhrase();


if (CAPT_IMG_DEBUG) {
	$filename = basename(__FILE__, '.php') . '-debug.txt';
	
	if (!$handle = fopen($filename, 'w')) {
		echo "Cannot open file ($filename)";
		exit;
	}

	// Write some content to our opened file.
	if (fwrite($handle, 'Session Data: ' .  print_r($_SESSION, true)) === FALSE) {
		echo "Cannot write to file ($filename)";
		exit;
	}
	
	fclose($handle);
}

echo $_SESSION[$sessionVar]->getCAPTCHAAsJPEG();

?>