使用PHP / Javascript进行多文件上传，无闪存 [英] Multi file upload with PHP/Javascript and no flash

问题描述

我正在尝试制作一个允许同时上传多个文件的网页。我会将文件扩展名限制为最常见的图像，如JPG，JPEG，PNG和GIF。

I'm trying to make a webpage that allows the uploading of multiple files at the same times. I will limit the file extensions to the most common images like JPG, JPEG, PNG and GIF.

我已经对此进行了一些研究，无处不在我看起来是闪存这个然后闪现。

I've done some research on this and everywhere I look it's flash this and flash that.

我真的不想使用闪存。特别是Flash 10，它禁用了最常用的方法来启用多文件上传。

I don't want to use flash really. Especially with Flash 10, which disables the most common used method to enable multifile upload.

我正在寻找的是一种不断创建越来越多输入字段的方法，每个都有一个浏览按钮，然后在表单底部有一个最终上传按钮。使用Javascript创建新的输入字段真是太大了。

What I'm looking for is a way to keep creating more and more input fields, each with a browse button and then with one final upload button at the bottom of the form. Creating the new input fields with a Javascript is nog big deal really.

所以我想知道这是如何工作的。我是否需要为所有文件输入字段赋予相同的名称属性，以便我可以使用1段PHP代码来解决这个问题？或者是否有一些方法可以让PHP检测出如何汇总多个文件并简单地将代码解析为for-loop中的文件？

So I'm wondering how this works. Do I need to give all file-input fields the same name atribute so I can use 1 piece of PHP code to solve this? Or Is there some way for PHP to detect howmany files have been sumbitted and simply put the code for parsing a file inside a for-loop?

推荐答案

以下是算法：

您可以将新文件输入字段添加到表单中。每个字段必须具有唯一的名称。然后，在服务器端，循环遍历$ _FILES数组，查看已上载的文件数量并进行处理。

You add the new file input fields to your form. Each of this field MUST have a unique name. Then, on the server side, you loop through the $_FILES array looking how many files have been uploaded and handling them.

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