Uploading Files on Google App Engine with PHP

gistfile1.php

<?php
/**
 * For uploads to the Cloud Storage using PHP, The form must be submitted first to Google. 
 * 
 * All information on that form is sent to you. 
 * 
 * 
 * 
 */
 
require_once 'google/appengine/api/cloud_storage/CloudStorageTools.php';
use google\appengine\api\cloud_storage\CloudStorageTools;
$options = [ 'gs_bucket_name' => '__YOUR_BUCKET_NAME__' ];
$gooCs = new CloudStorageTools();
/*
__YOUR_UPLOAD_URL - when the user submits the form, this is where the file should be posted. 
It is usually the value of the action attribute in your form tag .

$gaeFormUploadUrl this is the url you should put in the action tag. 
*/

$gaeFormUploadUrl = $gooCs->createUploadUrl('__YOUR_UPLOAD_URL', $options);


/**
 * Just process your $_POST and $_FILES data as you would,except for move_uploaded_file. 
 * The $_FILES['upload_field']['tmp_name'] actually holds your absolute, permanent path to the file in your Bucket.
 * You should save that information in your database or datastore for future reference
 * 
*/

/* 
If you need to get the URL to an image you uploaded, use the following method. 
Use the size parameter if you want the image resized for you
*/
 $gooCs->getImageServingUrl($gsUrl, array('size' => 400));
 
 /**
  * Check out https://developers.google.com/appengine/docs/php/refdocs/files/api.cloud_storage.CloudStorageTools#\google\appengine\api\cloud_storage\CloudStorageTools for more
  * 
  */