Question

我正在使用Zend_Form_Element_Captcha：

         $this->view->captcha = new Zend_Form_Element_Captcha('captcha', array(
            'label' => 'Codice di controllo:',
            'required' => true,
            'captcha' => array(
                'captcha' => 'Image',
                'font' => APPLICATION_PATH . '/../public/default/fonts/arial.ttf',
                'fontSize' => '22',
                'wordLen' => 6,
                'height' => '57',
                'width' => '135',
                'imgDir' => APPLICATION_PATH . '/../public/images/captcha',
                'imgUrl' => Zend_Registry::get('URL') . 'public/images/captcha',
                )
            ));

我需要我的验证码图像只显示小写字母，而不是大写字母。那可能吗？谢谢！

Answer 1

如果您不想要数字，可以试试这个：

$captcha = new Zend_Form_Element_Captcha(...);

$capcha_addapter = $captcha->getCaptcha();
$capcha_addapter->setUseNumbers(false); // No digit
$captcha->setCaptcha($capcha_addapter);

$this->view->captcha = $captcha;

Answer 2

如果您不想使用数字，只需使用useNumbers选项

即可

$this->view->captcha = new Zend_Form_Element_Captcha('captcha', array(
    'label' => 'Codice di controllo:',
    'required' => true,
    'captcha' => array(
        'captcha'     => 'Image',
        'useNumbers'  => false,
        'font'        => APPLICATION_PATH . '/../public/default/fonts/arial.ttf',
        'fontSize'    => '22',
        'wordLen'     => 6,
        'height'      => '57',
        'width'       => '135',
        'imgDir'      => APPLICATION_PATH . '/../public/images/captcha',
        'imgUrl'      => Zend_Registry::get('URL') . 'public/images/captcha',
        )
    ));

作为设置用于生成Captcha的char列表的一般解决方案，将扩展Zend_Captcha_Image类并覆盖_generateWord受保护的方法。

希望有所帮助

Zend_Form_Element_Captcha仅显示带有数字的图像

2 个答案: