PHP Example for Google Storage Upload and Download with Google APIs Client Library for PHP

google-cloud-storage-upload-download.php

<?php
/*
 * PHP Example for Google Storage Up- and Download 
 * with Google APIs Client Library for PHP:
 * https://github.com/google/google-api-php-client
 */

include( "Google/Client.php" );
include( "Google/Service/Storage.php" );

$serviceAccount		= "1234-xyz@developer.gserviceaccount.com";
$key_file		= "/path/to/keyfile.p12";

$bucket			= "my_bucket";
$file_name		= "test.txt";
$file_content		= "01101010 01110101 01110011 01110100 00100000 01100001 00100000 01110100 01100101 01110011 01110100";


$auth = new Google_Auth_AssertionCredentials(
					$serviceAccount,
					array('https://www.googleapis.com/auth/devstorage.read_write'),
					file_get_contents($key_file)
					);

$client = new Google_Client();
$client->setAssertionCredentials( $auth );

$storageService = new Google_Service_Storage( $client );


/***
 * Write file to Google Storage
 */
try 
{

	$postbody = array( 
			'name' => $file_name, 
			'data' => $file_content,
			'uploadType' => "media"
			);

	$gsso = new Google_Service_Storage_StorageObject();
	$gsso->setName( $file_name );

	$result = $storageService->objects->insert( $bucket, $gsso, $postbody );

	print_r($result);
	
}      
catch (Exception $e)
{
	print $e->getMessage();
}


/***
 * Read file from Google Storage
 */
try 
{

   $object = $storageService->objects->get( $bucket, $file_name );

   $request = new Google_Http_Request($object['mediaLink'], 'GET');
   $signed_request = $client->getAuth()->sign($request);
   $http_request = $client->getIo()->makeRequest($signed_request);
   echo $http_request->getResponseBody();
}      
catch (Exception $e)
{
    print $e->getMessage();
}

Lifesaver! This is only one place where you can find how to get/read non-public file from google cloud storage using php.

excelent info thanks

Exactly what I was looking for. Will be sharing!

https://github.com/google/google-api-php-client/blob/master/UPGRADING.md#google_auth_assertioncredentials-has-been-removed

Where should this code be deployed?? I'm not able to run it on lampserver

Thank you for the sample, it works like a charm! ;)

Thanks for sharing this !

You, my friend, are a LifeSaver.Thanks

how to set destination ?

I wrote a package to download / get local file and upload to Google Cloud Storage, maybe it help as well:
https://github.com/jeansouzak/duf
You can send a local file or external resource:

use JeanSouzaK\Duf\Duff;
use JeanSouzaK\Duf\Prepare\WebResource;
use JeanSouzaK\Duf\Prepare\LocalResource;

$duf = Duff::getInstance(Duff::GOOGLE_CLOUD_STORAGE, [
    'project_id' => 'storage-test-227305',
    'key_path' => '/home/env/storage-test-227305-8472347a39489.json'
]);

// - Chaining example -
$uploadResults = $duf->prepare([
    new LocalResource('imagem', '/home/test/images/test.jpg'),
    new WebResource('teste.png', 'https://dummyimage.com/600x400/000/fff')
])->download()->addBucket('your-bucket-name')->upload();