PHP post请求已停止，页面为空白

我有一个嵌入文件表单的表单新闻和新闻文件集合。在我的本地主机上，一切正常：新闻和新闻文件实体持续存在，文件上传。 但在生产服务器上，当我尝试添加文件时，post请求停止。文件已上载，数据库中不存在实体，post请求已停止，状态为：302已找到，它返回空白页，而不是重定向到下一页

public function createAction(Request $request) {

    $entity = new News();
    $form = $this->createCreateForm($entity);
    $form->handleRequest($request);

    if ($form->isValid()) {

        $em = $this->getDoctrine()->getManager();

        $em->persist($entity);

        // PROBLEM APPEARS HERE - WHEN TRY TO FLUSH
        $em->flush();


        $this->get('session')->getFlashBag()->add(
                'success', 'Wykonano pomyślnie!'
        );

        return $this->redirect($this->generateUrl('website_admin_panel_news'));
    }

    return $this->render('WebsiteNewsBundle:News:new.html.twig', array(
                'entity' => $entity,
                'form' => $form->createView(),
    ));
}

当我尝试只添加没有文件的新闻实体时没有问题。编辑实体时也是如此

日志：

我认为问题出在服务器端，我会写信给管理员，但他不是专家，所以我需要向他建议他需要更改的内容。。。有什么想法吗？可能是超时的问题吗

编辑： 我有更多的信息。问题发生在移动函数中。这不是一个超时问题，因为我已经尝试发送小文件1px-539字节，但它仍然无法完成任务。 以下是我要上传的实体：

<?php

namespace Website\NewsBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
// use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\Validator\Constraints;

/**
 * 
 *
 * @ORM\Entity
 * @ORM\HasLifecycleCallbacks
 * @ORM\Table(name="NewsFiles")
 * 
 */
class NewsFile {

    private $temp;

    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     * 
     */
    private $owner;

    /**
     * 
     */
    private $file;

    /**
     * @ORM\Column(type="string", length=255)
     * 
     */
    private $name;

    /**
     * @ORM\Column(type="datetime")
     */
    private $created_at;

    /**
     * @ORM\ManyToOne(targetEntity="News", inversedBy="newsFiles")
     * @ORM\JoinColumn(name="news_id", referencedColumnName="id")
     */
    protected $news;

    /**
     * @var string
     *
     * @ORM\Column(name="path", type="string", length=255)
     */
    private $path;

    /**
     * @var string
     *
     * @ORM\Column(type="boolean", nullable=false)
     */
    private $isMain;

    /**
     * Now we tell doctrine that before we persist or update we call the updatedTimestamps() function.
     *
     * @ORM\PrePersist
     * @ORM\PreUpdate
     */
    public function updatedTimestamps() {
        if ($this->getCreated_At() == null) {
            $this->setCreated_At(new \DateTime(date('Y-m-d H:i:s')));
        }
    }

    public function setId($id) {
        $this->id = $id;
    }

    public function getId() {
        return $this->id;
    }

    public function setOwner($owner) {
        $this->owner = $owner;
    }

    public function getOwner() {
        return $this->owner;
    }

    public function setName($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }

    public function setPath($path) {
        $this->path = $path;
    }

    public function getPath() {
        return $this->path;
    }

    /**
     * Set created_at
     *
     * @param string $created_at
     * @return File
     */
    public function setCreated_at($created_at) {
        $this->created_at = $created_at;

        return $this;
    }

    /**
     * Get created_at
     *
     * @return string
     */
    public function getCreated_at() {
        return $this->created_at;
    }

    /**
     * Sets file.
     *
     * @param UploadedFile $file
     */
    public function setFile(UploadedFile $file = null) {
        $this->file = $file;
        // check if we have an old image path
        if (isset($this->path)) {
            // store the old name to delete after the update
            $this->temp = $this->path;
            $this->path = null;
        } else {
            $this->path = 'initial';
        }
    }

    /**
     * Get file.
     *
     * @return UploadedFile
     */
    public function getFile() {
        return $this->file;
    }

    public function getAbsolutePath() {
        return null === $this->path ? null : $this->getUploadRootDir() . '/' . $this->path;
    }

    public function getWebPath() {
        return null === $this->path ? null : $this->getUploadDir() . '/' . $this->path;
    }

    protected function getUploadRootDir() {
        // the absolute directory path where uploaded documents should be saved
        return __DIR__ . '/../../../../web/' . $this->getUploadDir();
    }

    protected function getUploadDir() {

        return 'uploads/News/' . $this->getNews()->getId();
    }

    /**
     * @ORM\PrePersist()
     * @ORM\PreUpdate()
     */
    public function preUpload() {
        if (null !== $this->file) {
            // zrób cokolwiek chcesz aby wygenerować unikalną nazwę
            $this->setName(sha1(uniqid(mt_rand(), true)));
            $this->setPath($this->getName() . '.' . $this->file->guessExtension());
        }

    }

    /**
     * @ORM\PostPersist()
     * @ORM\PostUpdate()
     */
    public function upload() {
        // zmienna file może być pusta jeśli pole nie jest wymagane
        if (null === $this->file) {
            return;
        }

        // HERE HE CANCEL HIS WORK
        $this->getFile()->move($this->getUploadRootDir(), $this->path);


        // check if we have an old image
        if (isset($this->temp)) {
            echo "isset temp";
            // delete the old image
            unlink($this->getUploadRootDir() . '/' . $this->temp);
            // clear the temp image path
            $this->temp = null;
        }
        $this->file = null;

    }

    /**
     * @ORM\PostRemove()
     */
    public function removeUpload() {
        if ($file = $this->getAbsolutePath()) {
            unlink($file);
        }
    }

    /**
     * Set news
     *
     * @param string $news
     * @return News
     */
    public function setNews($news) {
        $this->news = $news;

        return $this;
    }

    /**
     * Get news
     *
     * @return string
     */
    public function getNews() {
        return $this->news;
    }

    /**
     * Set isMain
     *
     * @param string $isMain
     * @return IsMain
     */
    public function setIsMain($isMain) {
        $this->isMain = $isMain;

        return $this;
    }

    /**
     * Get isMain
     *
     * @return string
     */
    public function getIsMain() {
        return $this->isMain;
    }

}

---

好吧，我发现了发生的事情。 我的prod服务器不接受chmod功能，它已锁定。Symfony2文件： /供应商/symfony/symfony/src/symfony/Component/HttpFoundation/File/UploadedFile.php 有移动功能->我已经删除了chmod的用法，一切正常

以下是修改后的移动功能：

   public function move($directory, $name = null)
    {
        if ($this->isValid()) {
            if ($this->test) {
                return parent::move($directory, $name);
            }

            $target = $this->getTargetFile($directory, $name);

            if (!@move_uploaded_file($this->getPathname(), $target)) {
                $error = error_get_last();
                throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error['message'])));
            }

            return $target;
        }

        throw new FileException($this->getErrorMessage());
    }   

---

您是否尝试过为prod环境清除缓存？是的，多次。我没有访问命令行的权限，只能通过ftp访问，所以我已经从缓存中删除了文件，并将权限设置为777-R…进入app.php文件并打开debug:$kernel=new-AppKernel'prod'，true；这可能会给你一个更好的错误消息；prod真的会更好吗？

   public function move($directory, $name = null)
    {
        if ($this->isValid()) {
            if ($this->test) {
                return parent::move($directory, $name);
            }

            $target = $this->getTargetFile($directory, $name);

            if (!@move_uploaded_file($this->getPathname(), $target)) {
                $error = error_get_last();
                throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error['message'])));
            }

            return $target;
        }

        throw new FileException($this->getErrorMessage());
    }