/usr/share/php/Text/CAPTCHA/Driver/Word.php is in php-text-captcha 1.0.2-4.
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/**
* Text_CAPTCHA_Driver_Word - Text_CAPTCHA driver word CAPTCHAs
* Class to create a textual Turing test
*
* PHP version 5
*
* @category Text
* @package Text_CAPTCHA
* @author Tobias Schlitt <schlitt@php.net>
* @author Christian Wenz <wenz@php.net>
* @author Michael Cramer <michael@bigmichi1.de>
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @link http://pear.php.net/package/Text_CAPTCHA
*/
require_once 'Text/CAPTCHA/Driver/Base.php';
require_once 'Numbers/Words.php';
/**
* Require Numbers_Words class for generating the text.
*
* @category Text
* @package Text_CAPTCHA
* @author Tobias Schlitt <schlitt@php.net>
* @author Christian Wenz <wenz@php.net>
* @author Michael Cramer <michael@bigmichi1.de>
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @link http://pear.php.net/package/Text_CAPTCHA
*/
class Text_CAPTCHA_Driver_Word extends Text_CAPTCHA_Driver_Base
{
/**
* Phrase length.
* This variable holds the length of the Word.
*
* @var integer
*/
private $_length;
/**
* Numbers_Words mode.
* This variable holds the mode for Numbers_Words.
*
* @var String
*/
private $_mode;
/**
* Locale
* This variable holds the locale for Numbers_Words
*
* @var string
*/
private $_locale;
/**
* Initializes the new Text_CAPTCHA_Driver_Word object.
*
* @param array $options CAPTCHA options with these keys:<br>
* phrase The "secret word" of the CAPTCHA<br>
* length The number of characters in the phrase<br>
* locale The locale for Numbers_Words<br>
* mode The mode for Numbers_Words
*
* @return void
*/
public function initDriver($options = array())
{
if (isset($options['length']) && is_int($options['length'])) {
$this->_length = $options['length'];
} else {
$this->_length = 4;
}
if (isset($options['phrase']) && !empty($options['phrase'])) {
$this->setPhrase((string)$options['phrase']);
} else {
$this->createPhrase();
}
if (isset($options['mode']) && !empty($options['mode'])) {
$this->_mode = $options['mode'];
} else {
$this->_mode = 'single';
}
if (isset($options['locale']) && !empty($options['locale'])) {
$this->_locale = $options['locale'];
} else {
$this->_locale = 'en_US';
}
}
/**
* Create random CAPTCHA phrase, "Word edition" (numbers only).
* This method creates a random phrase
*
* @return void
*/
public function createPhrase()
{
$phrase = new Text_Password();
$this->setPhrase(
$phrase->create(
$this->_length, 'unpronounceable', 'numeric'
)
);
}
/**
* Place holder for the real _createCAPTCHA() method
* used by extended classes to generate CAPTCHA from phrase
*
* @return void
*/
public function createCAPTCHA()
{
$res = '';
$numberWords = new Numbers_Words();
$phrase = $this->getPhrase();
if ($this->_mode == 'single') {
$phraseArr = str_split($phrase);
for ($i = 0; $i < strlen($phrase); $i++) {
$res .= ' ' . $numberWords->toWords($phraseArr[$i], $this->_locale);
}
} else {
$res = $numberWords->toWords($phrase, $this->_locale);
}
$this->setCaptcha($res);
}
}
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