Viewing file:  class.htmlform_captcha.php (3.17 KB) -rw-rw-r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/**
* Class for CAPTCHA controls
*
* @author Stefan Gabos <[email protected]>
* @copyright (c) 2006 - 2008 Stefan Gabos
* @package HTMLForm_Controls
*/
class HTMLForm_captcha extends HTMLForm_control
{
/**
* The class needs to know the path of the package in order to be able to include captcha.php
*
* @access private
*/
var $relativePath = '';
/**
* Generates a CAPTCHA image
*
* <b>You can alter the properties of this image in file includes/captcha.php</b>
*
* <i>You must also place a {@link HTMLForm_text} control and set the</i> <b>captcha</b><i> rule to it (using {@link setRule})</i>
*
* <b>Do not instantiate this class directly!</b>
*
* Use {@link HTMLForm::add()} method instead!
*
* <code>
* /*
* note the use of the "&" symbol -> it's the way we can have a reference to the object in PHP4
* {@*}
*
* $obj = & $form->add('captcha', 'control_id');
*
* </code>
*
* @param string $controlID Unique name to identify the control in form
*
* @param array $attributes (Optional) an array of user specified HTML attributes valid for an <img> tag
*
* Must be specified as an associative array of type attributeName => attributeValue
*
* See {@link HTMLForm_control::setAttributes()} method to see how to set HTML attributes,
* other than through the class' constructor
*
* <i>If you don't use templates for the form's output but rather let the script automatically generate
* it for you, you may use a special attribute called "nobr" (used like "nobr" => true) which will
* instruct the script to not start a new line after the control having this attribute set, but place
* the next control on the same line</i>
*
* @return void
*/
function HTMLForm_captcha($controlID, $attributes = '')
{
// call the constructor of the parent class
parent::HTMLForm_control();
// set the private attributes of this control
// these attributes are private for this control and are for internal use only
$this->privateAttributes = array(
'nobr'
);
// set the default attributes for the text control
$this->setAttributes(
array(
'type' => 'captcha',
'id' => $controlID,
'name' => $controlID,
)
);
// sets user specified attributes for the control
$this->setAttributes($attributes);
}
/**
* Returns the HTML code of the control
*
* @return string Resulted HTML code
*
* @access private
*/
function toHTML()
{
return '<img src="' . $this->relativePath . '/includes/captcha.php?nocache=' . md5(mktime()) . '" alt="">';
}
}
?>
|