GAE上PHP 5.5中的直接文件上传功能是什么?

I gotten an mail from Google about PHP 5.5 runtime and list of new features in it. One of them is listed as support for direct file upload. Can any one explain what does that mean.

Does this mean that I can upload files to the temp directory, extract the data and then destroy the file?

This link has the instructions how to do direct file upload.

https://gae-php-tips.appspot.com/2015/03/09/direct-file-uploads-for-php-5-5/

Thanks @StuartLangley

What I found is that old apps have to enable a settings called cloud integration.

https://cloud.google.com/appengine/docs/java/googlecloudstorageclient/activate

That explains it. Please go to App Engine admin console (https://appengine.google.com), choose "Application Settings" on the left, click on "Create" button under "Cloud Integration" section, and you should have a default gcs bucket created.

Thx @mars..@google.com

Also this part of the code

// Direct uploads requires PHP 5.5 on App Engine.
if (strncmp("5.5", phpversion(), strlen("5.5")) < 0) {
    die("Direct uploads require the PHP 5.5 runtime.");
}

Does not actually tell you if your version is 5.5. I have been running 5.4 for days and it didn't dawn on me as I thought this would work blindly.

A more working model is this one

// Direct uploads requires PHP 5.5 on App Engine.
if (strncmp("5.5", phpversion(), strlen("5.5")) != 0) {
    die("Direct uploads require the PHP 5.5 runtime.");
}

Hope this helps any one who is working on direct file uploads for PHP in GAE. Now I can start working on my csv files yay.