# Type of request: This is a ...

[x] bug report
[ ] feature request

# Detailed description

If I upload objects to my bucket I don't get a list of my objects back, using the listObjects method of the phpsdk.
This was fixed previously in 0.11 but it's broken again in 0.12.x [#3021](https://github.com/localstack/localstack/issues/3021)

## Expected behavior

listObjects should return the objects in my bucket/folder.

## Actual behavior

Only metadata is returned.

# Steps to reproduce

- docker-compose.yml

```
version: '3.7'

services:
  localstack:
    #image: localstack/localstack:0.11.0
    image: localstack/localstack:latest
    ports:
      - "4566:4566"
      - "8080:8080"
    environment:
      - SERVICES=s3
      - DATA_DIR=/tmp/localstack-test/data
      - DEBUG=1
      - USE_LIGHT_IMAGE=1
      - DOCKER_HOST=unix:///var/run/docker.sock
      - DEFAULT_REGION=eu-central-1
    volumes:
      - "${TMPDIR:-/tmp/localstack-test}:/tmp/localstack-test"
```

- test.php

```
<?php
require 'vendor/aws-autoload.php';

use Aws\S3\S3Client;

$config = [
	'credentials' => [
		'key'    => 'test-id',
		'secret' => 'test-secret',
	],
	'region' => 'eu-central-1',
	'version' => 'latest',
	'endpoint' => 'http://localhost:4566',
	'use_path_style_endpoint' => true,
];
$s3client = new S3Client($config);
$buckets = $s3client->listBuckets();
if (empty($buckets['Buckets'])) {
	$s3client->createBucket([
		'Bucket' => 'test',
	]);
	echo 'Bucket test created' . PHP_EOL;
} else {
	echo 'Bucket test exists' . PHP_EOL;
}

$s3client->upload('test', 'test.txt', 'test');
var_dump($s3client->listObjectsV2(['Bucket' => 'test']));
```
## Expected example

```
> php test.php
Bucket test exists

class Aws\Result#245 (2) {
  private $data =>
  array(7) {
    'IsTruncated' =>
    bool(false)
    'Contents' =>
    array(1) {
      [0] =>
      array(5) {
        ...
      }
    }
    'Name' =>
    string(4) "test"
    'Prefix' =>
    string(0) ""
    'MaxKeys' =>
    int(1000)
    'KeyCount' =>
    int(1)
    '@metadata' =>
    array(4) {
      'statusCode' =>
      int(200)
      'effectiveUri' =>
      string(38) "http://localhost:4566/test?list-type=2"
      'headers' =>
      array(9) {
        ...
      }
      'transferStats' =>
      array(1) {
        ...
      }
    }
  }
  private $monitoringEvents =>
  array(0) {
  }
}
```

## Actual

```
> php test.php
Bucket test exists

class Aws\Result#245 (2) {
  private $data =>
  array(1) {
    '@metadata' =>
    array(4) {
      'statusCode' =>
      int(200)
      'effectiveUri' =>
      string(38) "http://localhost:4566/test?list-type=2"
      'headers' =>
      array(16) {
        ...
      }
      'transferStats' =>
      array(1) {
        ...
      }
    }
  }
  private $monitoringEvents =>
  array(0) {
  }
}
```

import io
import os
import ssl
import boto3
import gzip
import json
import time
import uuid
import unittest
import datetime
import requests
from io import BytesIO
from pytz import timezone
from urllib.parse import parse_qs, quote
from botocore.exceptions import ClientError
from six.moves.urllib import parse as urlparse
from six.moves.urllib.request import Request, urlopen