文件上传中断

Question

I'd like to upload large files to my server, but i would like to be able to make breaks (for example, the user must be able to shut down his computer and to continue after reboot) in the upload process.

I think i can handle the client side upload, but I don't know how to make the server side. What is the best way to make it on the server side? Is PHP able to do that ? Is PHP the most efficient?

Thanks a lot

Answer 1

If you manage to do the client side do post the file in chunks, you could do something like this on the server side:

    // set the path of the file you upload
    $path = $_GET['path']; 
    // set the `append` parameter to 1 if you want to append to an existing file, if you are uploading a new chunk of data
    $append = intval($_GET['append']); 

    // convert the path you sent via post to a physical filename on the server
    $filename = $this->convertToPhysicalPath($path);

    // get the temporary file
    $tmp_file = $_FILES['file']['tmp_name'];

    // if this is not appending
    if ($append == 0) {
        // just copy the uploaded file
        copy($tmp_file, $filename);
    } else { 
        // append file contents
        $write_handle = fopen($filename, "ab");
        $read_handle = fopen($tmp_file, "rb");

        $contents = fread($read_handle, filesize($tmp_file));
        fwrite($write_handle, $contents);

        fclose($write_handle);
        fclose($read_handle);
    }