Source for file qfcaptcha_form_image.php
Documentation is available at qfcaptcha_form_image.php
* HTML_QuickForm_CAPTCHA Image example - Form
* @package HTML_QuickForm_CAPTCHA
* @author Philippe Jausions <Philippe.Jausions@11abacus.com>
* @copyright 2006-2008 by Philippe Jausions / 11abacus
* @license http://www.opensource.org/licenses/bsd-license.php New BSD
* @version CVS: $Id: qfcaptcha_form_image.php,v 1.1 2008/04/26 23:27:32 jausions Exp $
* @link http://pear.php.net/package/HTML_QuickForm_CAPTCHA
* @see qfcaptcha_image.php
* Because the CAPTCHA element is serialized in the PHP session,
* you need to include the class declaration BEFORE the session starts.
* So BEWARE if you have php.ini session.auto_start enabled, you won't be
* able to use this element, unless you're also using PHP 5's __autoload()
* or php.ini's unserialize_callback_func setting
require_once 'HTML/QuickForm.php';
require_once 'HTML/QuickForm/CAPTCHA/Image.php';
* A session is required to store the Text_CAPTCHA instance
$form = new HTML_QuickForm ('qfCaptcha');
* - Default image size is 200 x 80 pixels
* - Default session variable to store phrase in is _HTML_QuickForm_CAPTCHA
* - Default font info is as listed below
* It is imperative to have a correct font path and file!
* 'callback' is the URL to the script that will generate the actual image
* Here "qfcaptcha_image.php" refer to the other example file (also in this
'callback' => 'qfcaptcha_image.php?var='. basename(__FILE__ , '.php'),
'sessionVar' => basename(__FILE__ , '.php'),
'font_path' => '/usr/share/fonts/truetype/',
'font_file' => 'cour.ttf')
// Minimum options using all defaults (including defaults for Image_Text):
//$options = array('callback' => 'qfcaptcha_image.php');
$captcha_question = & $form->addElement ('CAPTCHA_Image', 'captcha_question',
'Verification', $options);
if (PEAR ::isError ($captcha_question)) {
echo $captcha_question->getMessage ();
$form->addElement ('static', null , null , 'Click on the image for a new one');
$form->addElement ('text', 'captcha', 'Enter the letters you see');
$form->addRule ('captcha', 'Enter the characters you read in the image',
'required', null , 'client');
$form->addRule ('captcha', 'What you entered didn\'t match the picture',
'CAPTCHA', $captcha_question);
$form->addElement ('submit', '', 'Verify');
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3c.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>HTML_QuickForm_CAPTCHA Image example</title>
<h1>Image CAPTCHA HTML QuickForm</h1>
// Prevent re-use of the same CAPTCHA phrase
$captcha_question->destroy ();
echo '<p>Value matched</p>';
<p><a href="qfcaptcha_image.phps">PHP file source for CAPTCHA image code</a></p>
Documentation generated on Mon, 11 Mar 2019 15:21:02 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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