Android将文件上传到php

Question

我想使用post将文件上传到服务器php 继承我的代码

    String url = "http://blabla.com/upload.php";
File file = new File(Environment.getExternalStorageDirectory(),
        "Myfile.log");
try {
    HttpClient httpclient = new DefaultHttpClient();

    HttpPost httppost = new HttpPost(url);

    InputStreamEntity reqEntity = new InputStreamEntity(
            new FileInputStream(file), -1);
    reqEntity.setContentType("binary/octet-stream");
    reqEntity.setChunked(true); // Send in multiple parts if needed
    httppost.setEntity(reqEntity);
    HttpResponse response = httpclient.execute(httppost);
    //Do something with response...
}

我的问题是如何在PHP上处理它？如果它在$_FILES数组中，那么我应该使用什么ID将其放入uploads文件夹（$_FILES['whatShouldBeHere']）？谢谢。