File upload 在zend framework2中上载文件时出错

我创建了一个带有文件上载字段的表单，并尝试按如下方式上载文件：

    $adapter = new \Zend\File\Transfer\Transfer();
    $adapter->addValidator(‘Count’,false, array(‘min’=>1, ‘max’=>3))
    ->addValidator(‘Size’,false,array(‘max’ => 10000))
    ->addValidator(‘Extension’,false,array(‘extension’ => ‘txt’,’case’ => true));

    $adapter->setDestination('images/');

    $files = $adapter->getFileInfo();

    foreach($files as $fieldname=>$fileinfo)
    {
    if (($adapter->isUploaded($fileinfo[name]))&& ($adapter->isValid($fileinfo[‘name’])))
    {
    $adapter->receive($fileinfo[name]);
    //then, store links etc in db for retrieval later..
    }

    }
    var_dump($adapter->getMessages());

我得到了一个错误：

Zend\File\Transfer\Adapter\ValidatorPluginManager::get was unable to fetch or create an instance for ‘Count’

---

如何解决这个问题并使其可行？

您的代码中有一些错误。首先

new\Zend\File\Transfer\Transfer（）不是适配器，而是传输适配器管理器

你不应该用这个来命名你的变量。让我们纠正并解释一下

    //We initialize the transfer adapter manager
    $transferService = new \Zend\File\Transfer\Transfer();
    //We fetch the matching adapter
    //the doc says that the param is to be set to true to fetch upload adapter, false for download adapter, null for both.
    //For us it's true
    $adapter = $transferService->getAdapter(true);

    //Now the rest should be working fine

    $adapter->addValidator(‘Count’,false, array(‘min’=>1, ‘max’=>3))
    ->addValidator(‘Size’,false,array(‘max’ => 10000))
    ->addValidator(‘Extension’,false,array(‘extension’ => ‘txt’,’case’ => true));

    $adapter->setDestination('images/');

    $files = $adapter->getFileInfo();

    foreach($files as $fieldname=>$fileinfo)
    {
    if (($adapter->isUploaded($fileinfo[name]))&& ($adapter->isValid($fileinfo[‘name’])))
    {
    $adapter->receive($fileinfo[name]);
    //then, store links etc in db for retrieval later..
    }

    }
    var_dump($adapter->getMessages());

由于这个主题的文档并不完整，所以您应该深入研究代码，看看它是如何完成的。理解起来真的很快

希望这有帮助
您的代码中有一些错误。首先
new\Zend\File\Transfer\Transfer（）不是适配器，而是传输适配器管理器

你不应该用这个来命名你的变量。让我们纠正并解释一下

    //We initialize the transfer adapter manager
    $transferService = new \Zend\File\Transfer\Transfer();
    //We fetch the matching adapter
    //the doc says that the param is to be set to true to fetch upload adapter, false for download adapter, null for both.
    //For us it's true
    $adapter = $transferService->getAdapter(true);

    //Now the rest should be working fine

    $adapter->addValidator(‘Count’,false, array(‘min’=>1, ‘max’=>3))
    ->addValidator(‘Size’,false,array(‘max’ => 10000))
    ->addValidator(‘Extension’,false,array(‘extension’ => ‘txt’,’case’ => true));

    $adapter->setDestination('images/');

    $files = $adapter->getFileInfo();

    foreach($files as $fieldname=>$fileinfo)
    {
    if (($adapter->isUploaded($fileinfo[name]))&& ($adapter->isValid($fileinfo[‘name’])))
    {
    $adapter->receive($fileinfo[name]);
    //then, store links etc in db for retrieval later..
    }

    }
    var_dump($adapter->getMessages());

由于这个主题的文档并不完整，所以您应该深入研究代码，看看它是如何完成的。理解起来真的很快

希望这有帮助
@Dymen1您对此有什么解决方案吗？您何时收到此错误消息？创建适配器或上载文件时？上载文件时会生成此错误，不上载file@Dymen1您对此有什么解决方案吗？何时收到此错误消息？创建适配器或上载文件时？上载文件时，会生成此错误，并且不会将文件调用上载到成员函数addValidator（）的空值@这取决于您的zf2版本。您可以保留脚本，只需更改“$adapter=new\Zend\File\Transfer\Transfer（）；”到
$adapter=new\Zend\File\Transfer（）在null上调用成员函数addValidator（）@这取决于您的zf2版本。您可以保留脚本，只需更改“$adapter=new\Zend\File\Transfer\Transfer（）；”到
$adapter=new\Zend\File\Transfer（）