PHP connect to aws. Connection refused - php

Question

I can't connect to AWS S3 using the official PHP SDK from Amazon.
This code
<?php
....
$s3Client = new S3Client([
'version' => 'latest',
'region' => 'us-east-1',
'credentials' => [
'key' => 'key',
'secret' => 'secret',
],
]);
// Use the S3 client to perform actions, such as listing buckets
$result = $s3Client->listBuckets();
foreach ($result['Buckets'] as $bucket) echo $bucket['Name'] . "\n";
I get this error.
PHP Fatal error: Uncaught exception 'Aws\S3\Exception\S3Exception' with message 'Error executing "ListBuckets" on "https://s3.amazonaws.com/"; AWS HTTP error: Connection refused for URI https://s3.amazonaws.com/'
GuzzleHttp\Exception\ConnectException: Connection refused for URI https://s3.amazonaws.com/ in C:\Users\bgaliev\PhpstormProjects\Cash2u.MigrationUtil\vendor\guzzlehttp\guzzle\src\Handler\StreamHandler.php:328
Stack trace:
I tried to do same thing using C#, that worked without any errors.
Here is the basic sample code on C#
using Amazon;
using Amazon.Runtime;
using Amazon.S3;
using Amazon.S3.Model;
var amazonS3Client = new AmazonS3Client(
new BasicAWSCredentials("key", "secret"),
new AmazonS3Config
{
RegionEndpoint = RegionEndpoint.USEast1
}
);
var listBuckets = await amazonS3Client.ListBucketsAsync(new ListBucketsRequest());
foreach (var listBucketsBucket in listBuckets.Buckets)
{
Console.WriteLine(listBucketsBucket.BucketName);
}

Answer 1

In my experience you need to declare an object of AWS Credentials class first
So for your case, please change to something like:
<?php
....
$credentials = new Aws\Credentials\Credentials('key', 'secret');
$s3Client = new Aws\S3\S3Client([
'version' => 'latest',
'region' => 'us-east-1',
'credentials' => $credentials
]);

Answer 2

Refer to the PHP S3 example in AWS Github that specifies how to use the S3Client to perform this use case.
Notice the mention about creds in this doc topic:
https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials.html
require 'vendor/autoload.php';
use Aws\S3\S3Client;
use Aws\Exception\AwsException;
// snippet-end:[s3.php.list_buckets.import]
/**
* List your Amazon S3 buckets.
*
* This code expects that you have AWS credentials set up per:
* https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials.html
*/
//Create a S3Client
// snippet-start:[s3.php.list_buckets.main]
$s3Client = new S3Client([
'profile' => 'default',
'region' => 'us-west-2',
'version' => '2006-03-01'
]);
//Listing all S3 Bucket
$buckets = $s3Client->listBuckets();
foreach ($buckets['Buckets'] as $bucket) {
echo $bucket['Name'] . "\n";
}