Some quick examples in php to read and store data and files on AWS S3

aws-s3-examples.php

<?php

// assume aws sdk is in composer: "aws/aws-sdk-php": "^3.0",
require __DIR__ . '/../../vendor/autoload.php';

// load $AWS_KEY, $AWS_SECRET
require __DIR__ . '/../../local/credentials.php';

$bucket = 'BUCKETNAME'
$awsCredentials = new \Aws\Credentials\Credentials($AWS_KEY, $AWS_SECRET);
/**
 * @link https://docs.aws.amazon.com/aws-sdk-php/v3/api/class-Aws.S3.S3Client.html
 */
$s3Client = new \Aws\S3\S3Client([
    'region' => 'eu-central-1',
    'version' => '2006-03-01',
    'signature_version' => 'v4',
    'credentials' => $awsCredentials
]);

/**
 * STORE DATA
 */
// there are two buckets, kbee-data-prod and kbee-data-staging
;
$data = 'test ' . date('Y-m-d H:i:s');
$key = 'testdata/mystring.txt';
$s3Client->putObject([
    'Key' => $key,
    'Bucket' => $bucket,
    'Body' => $data
]);
echo "Data stored\n";

/**
 * GET DATA
 */
$key = 'testdata/mystring.txt';
$result = $s3Client->getObject([
    'Key' => $key,
    'Bucket' => $bucket
]);
$retrievedData = $result->get('Body');
echo "Data retrieved: {$retrievedData}\n";


/**
 * STORE FILE
 */
$data = 'test ' . date('Y-m-d H:i:s');
$key = 'testdata/myfile.txt';
$file = __DIR__ . '/myfile.txt';
$s3Client->putObject([
    'Key' => $key,
    'Bucket' => $bucket,
    'SourceFile' => $file
]);
echo "File uploaded\n";


/**
 * DOWNLOAD FILE
 */
$key = 'testdata/myfile.txt';
$destFile = __DIR__ . '/mydownloadedfile.txt';
$s3Client->getObject([
    'Key' => $key,
    'Bucket' => $bucket,
    'SaveAs' => $destFile
]);
echo "File downloaded, contents is " . file_get_contents($destFile) . "\n";


echo "done";