filesystems.php

<?php

's3-backups' => [
		'driver' => 's3',
		'key' => config('aws.public_key'),
		'secret' => config('aws.secret_key'),
		'region' => config('aws.region'),
		'bucket' => $bucket_name
]

helpers.php

<?php

function MakeReadable($bytes) {
    if ($bytes > 0) {
        $i = floor(log($bytes, 1024));
        return round($bytes / pow(1024, $i), [0,0,2,2,3][$i]).['B','kB','MB','GB','TB'][$i];
    }
    return $bytes;
}

s3-list-bucket-content.php

<?php

$disk = Storage::disk('s3-backups');

$backups = collect($disk->files($bucketPath))->sortByDesc(function ($file) use ($disk) {
		return $disk->lastModified($file);
})->map(function ($backup) use ($disk) {
		return [
				'url' => $disk->url($backup),
				'size' => MakeReadable($disk->size($backup)),
				'mimeType' => $disk->mimeType($backup),
				'lastModified' => date('Y-m-d H:i:s', $disk->lastModified($backup))
		];
});