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在PHP.MVC中上传文件

Jun 21, 2016 am 08:59 AM
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  PHP.MVC官方网站上介绍的是使用PEAR::HTTP_Upload 包来处理上传,而我只是用原始的方式来进行上传的处理,主要是为了说明在MVC的框架中怎样上传文件.以后我可能会使用PEAR::HTTP_Upload 包来做.

  1.打开phpmvc-config.xml,在标签中加上:


  其中maxFileSize为上传文件大小的最大值,单位是字节,上传的文件会用一个临时的名字存放在php.ini所配置的位置,我们当然要把这些文件另存到我们自己的目录中,tempDir就是这个目录.

  2.保存文件.现在写一个php页,里面写一个上传文件的表单:


   

   

  其中enctype一定要设定为multipart/form-data

  3.写一个ActionForm类,比如叫UploadForm,这个类和普通的ActionForm大同小异,但我们要在其中的validate方法中实现操作上传的文件.首先要得到xml配置文件中的值:

$appConfig =& $this->actionServer->getApplicationConfig($request);
$controllerConfig =& $appConfig->getControllerConfig();
$tmpFileDir = $controllerConfig->getTempDir();
$maxFileSize= intval($controllerConfig->getMaxFileSize(),10);

  一定要把文件大小那个用intval函数转换成整形数据.

  接着得到我们上传的文件信息:

$upload_file=$_FILES['file']['tmp_name'];
$upload_file_name=$_FILES['file']['name'];
$upload_file_size=intval($_FILES['file']['size'],10);

  ['file']是上传表单的名字.tmp_name,name和size分别是这个文件的临时文件地址(包括文件名),源文件名和大小.同样大小也需要转换为整形

  下面判断上传的文件是否达到我们的大小要求:

if($upload_file_size > $maxFileSize)
{
 //这里做错误处理
}

  最后拷贝我们的文件到目的目录:

if (!copy($upload_file,$tmpFileDir.$upload_file_name))
{
 //这里做复制失败处理
}

  4.下面是Action类,这个类就和普通的Action一样,里面可以做一些文件上传后的处理,也可以直接重定向到上传成功的页面.

  5.将你的ActionForm和Action配置到phpmvc-config.xml中去,运行一下试试吧!



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