在我的Zend应用程序中,我遇到了Captcha元素的异常问题。当我尝试查看我在本地计算机上使用此Captcha元素的表单时,它工作正常,但是当我将其上传到我的Debian服务器时它无法正常工作...... !!!
差异如下:
正如您在localhost上看到的那样,验证码内的文本会显示给用户,在服务器[Debian]上,文本丢失!!!!!
我使用了followig代码在我的Zend表单上创建了Captcha元素:
$elements = array();
$captchaElement = new Zend_Form_Element_Captcha('captcha',
array('label' => "Ihr generierter Textcode:",
'captcha' => array('captcha' => 'Image',
'name' => 'myCaptcha',
'wordLen' => 5,
'timeout' => 300,
'font' => 'verdana.ttf',
'imgDir' => 'captcha/',
'imgUrl' => '/captcha/')
)
);
$elements[] = $captchaElement;
foreach ($elements as $index => $element)
{
$element->setAttrib('tabindex', ($index + 1));
}
谁能告诉我我在做什么错误??
先谢谢.....
答案 0 :(得分:4)
设置字体和图像的绝对路径:
$captchaOptions = array(
'label' => "Enter key",
'captcha' => array(
'captcha' => 'Image',
'wordLen' => 4,
'width' => 197,
'timeout' => 120,
'expiration'=> 300,
'font' => APPLICATION_PATH . '/../public/ttf/arial.ttf',
'imgDir' => APPLICATION_PATH . '/../public/images/captcha',
'imgUrl' => '/images/captcha/',
'gcFreq' => 5
),
);
你使用什么ZF版本?因为1.7装饰后有一个错误,你必须设置自己的装饰器,否则Zend_Captcha不起作用:
$captcha = new Zend_Form_Element_Captcha('Captcha', $captchaOptions);
$captchaDecor = array_merge(array(new Decorator_Captcha()), $captcha->getDecorators());
$captcha->setDecorators($captchaDecor);
下面的Decorator_Captcha文件
class Decorator_Captcha extends Zend_Form_Decorator_Abstract
{
/**
* Render captcha
*
* @param string $content
* @return string
*/
public function render($content)
{
$element = $this->getElement();
if (!method_exists($element, 'getCaptcha')) {
return $content;
}
$view = $element->getView();
if (null === $view) {
return $content;
}
$placement = $this->getPlacement();
$separator = $this->getSeparator();
$captcha = $element->getCaptcha();
$markup = $captcha->render($view, $element);
switch ($placement) {
case 'PREPEND':
$content = $content . $separator . $markup;
break;
case 'APPEND':
default:
$content = $markup . $separator . $content;
}
return $content;
}
}
答案 1 :(得分:0)
正如RockyFord已在评论中写道,它不是ZF错误,而是PHP错误。
您将在已提供的答案中找到解决方案:Zend captcha Image generates blank