public static function createImage($width, $height, $lenght)
{
// First generate the code
$code = Captcha::createCode($lenght);
// Create the images
$img = imagecreatetruecolor($width, $height);
$bgColor = imagecolorallocate($img, 245, 245, 245);
ImageFill($img, 0, 0, $bgColor);
$security_number = empty($_SESSION['security_number']) ? 'error' : $_SESSION['security_number'];
$image_text = $security_number;
$red = rand(100, 255);
$green = rand(100, 255);
$blue = rand(100, 255);
$text_color = imagecolorallocate($img, 255 - $red, 255 - $green, 255 - $blue);
$text = imagettftext($img, 15, rand(-10, 10), rand(10, 40), rand(25, 30), $text_color, "assets/fonts/courbd.ttf", $image_text);
imagejpeg($img);
}
/**
* 获取验证码
*/
public function getCaptcha()
{
$now = time();
$captcha_obj = new Captcha();
//$captcha_obj->doImg();
$captcha = $captcha_obj->createCode();
$captcha_encode = $this->encryptionCaptcha($captcha, $now);
Star_Cookie::set('captcha', $captcha_encode, $now + self::CAPTCHA_TIMEOUT);
Star_Cookie::set('ct', $now, $now + self::CAPTCHA_TIMEOUT);
return $captcha;
}
