AWS S3 File Manager and Uploader – S3 Bucket API based PHP Script

Introduction

Amazon S3 is a widely used cloud-based object storage service offered by Amazon Web Services (AWS). It allows users to store and serve large amounts of data, such as images, videos, documents, and more. In this tutorial, we will explore how to use the AWS S3 File Manager and Uploader - a PHP script that utilizes the S3 Bucket API to manage and upload files to your AWS S3 bucket.

What is AWS S3 File Manager and Uploader?

The AWS S3 File Manager and Uploader is a PHP script that allows you to manage and upload files to your AWS S3 bucket using the S3 Bucket API. With this script, you can upload, download, and delete files, as well as manage file permissions and metadata.

Prerequisites

Before you begin, you will need:

1. An AWS S3 bucket
2. An AWS S3 bucket policy that grants permissions to your PHP script (you can create a bucket policy or edit an existing one)
3. PHP version 5.3 or higher
4. Composer (optional, but recommended)
5. A code editor or IDE (optional, but recommended)

Getting Started

To get started, follow these steps:

1. Install Composer: If you don't have Composer installed on your system, you can download and install it from the official Composer website.
2. Create a new PHP project: Create a new folder for your project and create a composer.json file inside it.
3. Define the dependencies: In your composer.json file, add the following dependencies:

   {
   "require": {
       "aws/aws-sdk-php": "^3.176",
       "league/flysystem-aws-s3-v3": "^3.0"
   }
   }

   These dependencies include the AWS SDK for PHP and the League Flysystem AWS S3 adapter.

4. Run Composer: Run composer install in your terminal to install the dependencies.
5. Create a PHP file: Create a new PHP file named aws_s3_file_manager.php (or any other name you prefer).

Using the AWS S3 File Manager and Uploader

In the next sections, we will explore the features of the AWS S3 File Manager and Uploader in detail.

Uploading Files

To upload files to your S3 bucket, you can use the following code snippet:

<?php

require 'vendor/autoload.php';

use AwsS3S3Client;
use LeagueFlysystemFilesystem;
use LeagueFlysystemAdapterS3V3AwsS3Client;

// Set your AWS credentials and S3 bucket name
$credentials = 'AKIAIOSFODNN7EXAMPLE';
$s3BucketName = 'example-bucket';

// Create an S3 client and flysystem instance
$s3Client = S3Client::factory([
    'credentials' => $credentials,
    'bucket' => $s3BucketName,
    'version' => 'latest',
]);
$filesystem = new Filesystem(new AwsS3Client($s3Client));

// Get a file to upload
$file = fopen('example.txt', 'r');

// Upload the file
$filesystem->putFile($file, 'example.txt');

// Check the upload status
echo $filesystem->readFile('example.txt');

?>

Replace 'AKIAIOSFODNN7EXAMPLE' and 'example-bucket' with your actual AWS access key and S3 bucket name.

Managing Files

To manage files, such as renaming, deleting, and listing files, you can use the following code snippets:

Rename File

<?php

$file = 'example.txt';
$newFileName = 'new-example.txt';

$filesystem->rename($file, $newFileName);

?>

Delete File

<?php

$file = 'example.txt';

$filesystem->delete($file);

?>

List Files

<?php

$files = $filesystem->listContents('');

echo json_encode($files);

?>

Replace 'example.txt' and 'new-example.txt' with the actual file names.

Downloading Files

To download files from your S3 bucket, you can use the following code snippet:

<?php

$file = 'example.txt';

 header('Content-Disposition: attachment; filename="'. basename($file).'"');
 header('Content-Type: application/octet-stream');

$stream = $filesystem->readStream($file);
fpassthru($stream);

?>

This code snippet sets the HTTP headers for a file download and reads the file contents from your S3 bucket.

Conclusion

In this tutorial, we have explored the AWS S3 File Manager and Uploader - a PHP script that utilizes the S3 Bucket API to manage and upload files to your AWS S3 bucket. You have learned how to upload, download, rename, delete, and list files, as well as manage file permissions and metadata.

Note: This is just a basic tutorial and does not cover all the features of the AWS S3 File Manager and Uploader. For more information, you can visit the official documentation of the AWS SDK for PHP and the League Flysystem AWS S3 adapter.