Objective-C和PHP文件上载和移动

我在尝试将上传的文件放入正确的目录时遇到了一些麻烦，非常类似于：但是，代码和权限似乎都很好。我将本教程用于Objective-C部分：下面是应用程序和PHP脚本的完整实现。然而，问题可能是Objective-C从未实际传输图像。如果你需要更多信息，请告诉我。PHP返回：

报告文件上载成功，但实际上并未上载jpeg。

- (IBAction)shareWithFriends:(id)sender
{

if (imageView.image != nil)
{
    NSData *image = UIImageJPEGRepresentation(imageView.image, 0.1);

    self.fileUploadClient = [[fileUploadClient alloc] initWithHostName:@"shipstudent.com" customHeaderFields:nil];

    NSMutableDictionary *postParameters = [NSMutableDictionary dictionaryWithObject:@"Animal" forKey:@"appID"];

    self.fileOperation = [self.fileUploadClient postData:postParameters path:@"/animal/pictureuploads.php"];

    [self.fileOperation addData:image forKey:@"userfl" mimeType:@"image/jpeg" fileName:@"upload.jpg"];

    [self.fileOperation addCompletionHandler:^(MKNetworkOperation *operation)
    {

        NSLog(@"%@",[operation responseString]);
    }

     errorHandler:^(MKNetworkOperation *errorOperation, NSError *error)
     {

         UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Error" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles: nil];

         [alert show];

     }];

    [self.fileUploadClient enqueueOperation:self.fileOperation];

}
else
{

}

}

PHP:

---

从错误中可以看出，您正在尝试无处写入。您的

$uploaddir

变量从未设置，

$file

将始终为null，因此您告诉它写入

$uploadfile=null。空

，请尝试以下操作：

if(!empty($_POST)) {

    $directory = $_SERVER['DOCUMENT_ROOT'] . '/appphotos/';
    // $file = basename($_FILES['userfl']['upload.jpg']);
    $file = basename($_FILES['userfl']['name']);
    // $uploadfile = $uploaddir . $file;
    $uploadfile = $directory . $file;
    $randomPhotoID = md5(rand() * time());

    echo 'file=' . $file;

    //where the error resides
    if (move_uploaded_file($_FILES['userfl']['tmp_name'], $uploadfile)) {
        echo 'successful';
    } else {
        echo 'unsuccessful';
    }

} else {
    echo 'empty post data' ;
}

---

我发现，经过一些调试后，它将不会写的形象，即使它说它是成功的。此外，除非我这样做，否则目录不会写入任何内容：$directory=$\u SERVER['DOCUMENT\u ROOT']/appphotos'；而不是$directory=$\u SERVER['DOCUMENT\u ROOT']appphotos/'；这是因为

$\u服务器['DOCUMENT\u ROOT']

没有以目录分隔符结尾，所以请改用

/appphotos/

。还有，是777号目录吗？如果没有，请从命令行运行

chmod 777/path/to/dir/here/appphotos

。如果使用appphotos文件夹/after，则会返回错误：警告：移动上传的文件（）：无法将第40行的“/tmp/php0dqQSS”移动到/home/shipstrud/public_html/appphotos/”中的“/home/shipstrud/public_html/animal/pictureuploads.php”中的“/home/shipstrud/public_html/appphotos/”
可能未提供文件名，或者存在权限问题。

if(!empty($_POST)) {

    $directory = $_SERVER['DOCUMENT_ROOT'] . '/appphotos/';
    // $file = basename($_FILES['userfl']['upload.jpg']);
    $file = basename($_FILES['userfl']['name']);
    // $uploadfile = $uploaddir . $file;
    $uploadfile = $directory . $file;
    $randomPhotoID = md5(rand() * time());

    echo 'file=' . $file;

    //where the error resides
    if (move_uploaded_file($_FILES['userfl']['tmp_name'], $uploadfile)) {
        echo 'successful';
    } else {
        echo 'unsuccessful';
    }

} else {
    echo 'empty post data' ;
}