public function index01Action()
{
echo "<h3 style='color:red;font-weight:bold'>" . __METHOD__ . "</h3>";
//Tạo đối tượng chaptcha Image
$captchaImg = new \Zend\Captcha\Image();
//Thiết lập đường dẫn đấn thư mục hình ảnh chứa captcha
$captchaImg->setImgDir(CAPTCHA_PATH . "images");
//Thiết lập url cho hình ảnh captcha
$captchaImg->setImgUrl(CAPTCHA_URL . "images");
//Thiết lập font
$captchaImg->setFont(CAPTCHA_PATH . "fonts/Vharis.ttf");
//font-size
$captchaImg->setFontSize(30);
//length-char
$captchaImg->setWordlen(5);
//width-height cho captcha
$captchaImg->setWidth(180);
$captchaImg->setHeight(70);
//set dấu chấm và đường chéo
$captchaImg->setDotNoiseLevel(70);
$captchaImg->setLineNoiseLevel(5);
//Thiết lập ký tự xuất hiện
AbstractWord::$VN = array("t");
AbstractWord::$CN = array("r");
//Phát sinh captcha
$captchaImg->generate();
$imgUrl = $captchaImg->getImgUrl() . $captchaImg->getId() . $captchaImg->getSuffix();
return new ViewModel(array("imgUrl" => $imgUrl));
}
/**
* Generate captcha
*
* @return string captcha ID
*/
public function generate()
{
$id = parent::generate();
$tries = 5;
// If there's already such file, try creating a new ID
while ($tries-- && file_exists($this->getImgDir() . $id . $this->getSuffix())) {
$id = $this->generateRandomId();
$this->setId($id);
}
$this->generateImage($id, $this->getWord());
if (mt_rand(1, $this->getGcFreq()) == 1) {
$this->gc();
}
return $id;
}
/**
* Generate new captcha
*
* @return string
*/
public function generate()
{
$this->useNumbers = false;
return parent::generate();
}
/**
* @param \Zend\Captcha\AbstractWord $oCaptcha
* @return \BoilerAppAccessControl\Form\RegisterForm
*/
public function setCaptcha(\Zend\Captcha\AbstractWord $oCaptcha)
{
$this->captcha = $oCaptcha->setName('auth_access_captcha');
return $this;
}