Create a Route53 domain entry using the AWS SDK

route53-create.php

<?php

$s3 = Route53Client::factory(array(
    'credentials' => [
        'key'    => env('AWS_KEY'),
        'secret' => env('AWS_SECRET'),
    ],
    'region' => env('AWS_REGION'),
    'version' => 'latest',
));

$hostedZone = $s3->createHostedZone(array(
    // Name is required
    'Name' => 'domain.tld',
    // CallerReference is required
    'CallerReference' => 'domain-tld' . time(),
    'HostedZoneConfig' => array(
        'Comment' => 'Some useful comment',
    ),
    'DelegationSetId' => getenv('ROUTE_53_DELEGATION'),
));