Source for file captcha.php
Documentation is available at captcha.php
* @package Joomla.Libraries
* @copyright Copyright (C) 2005 - 2009 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
* Form Field class for the Joomla Framework.
* @package Joomla.Libraries
protected $type =
'Captcha';
* Method to get certain otherwise inaccessible properties from the form field object.
* @param string $name The property name for which to the the value.
* @return mixed The property value or null.
public function __get($name)
return parent::__get($name);
* Method to set certain otherwise inaccessible properties of the form field object.
* @param string $name The property name for which to the the value.
* @param mixed $value The value of the property.
public function __set($name, $value)
$this->$name = (string)
$value;
parent::__set($name, $value);
* Method to attach a JForm object to the field.
* @param SimpleXMLElement $element The SimpleXMLElement object representing the <field /> tag for the form field object.
* @param mixed $value The form field value to validate.
* @param string $group The field name group control value. This acts as as an array container for the field.
* For example if the field has name="foo" and the group value is set to "bar" then the
* full field name would end up being "bar[foo]".
* @return boolean True on success.
public function setup(SimpleXMLElement $element, $value, $group =
null)
$result =
parent::setup($element, $value, $group);
$plugin =
$this->element['plugin'] ?
(string)
$this->element['plugin'] :
if ($plugin ===
0 ||
$plugin ===
'0' ||
$plugin ===
'' ||
$plugin ===
null)
// Force field to be required. There's no reason to have a captcha if it is not required.
// Obs: Don't put required="required" in the xml file, you just need to have validate="captcha"
$this->namespace =
$this->element['namespace'] ? (string)
$this->element['namespace'] :
$this->form->getName();
* Method to get the field input.
* @return string The field input.
if (($captcha =
JCaptcha::getInstance($this->plugin, array('namespace' =>
$this->namespace))) ==
null)
return $captcha->display($this->name, $this->id, $this->class);
Documentation generated on Tue, 19 Nov 2013 14:55:02 +0100 by phpDocumentor 1.4.3