AllocateAddresses.php

<?php
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

/*
 *  ABOUT THIS PHP SAMPLE: This sample is part of the SDK for PHP Developer Guide topic at
 * https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/ec2-examples-using-elastic-ip-addresses.html
 *
 *
 *
 */
// snippet-start:[ec2.php.allocate_addresses.complete]
// snippet-start:[ec2.php.allocate_addresses.import]

require 'vendor/autoload.php';

// snippet-end:[ec2.php.allocate_addresses.import]
/**
 * Allocate and associate Address
 *
 * This code expects that you have AWS credentials set up per:
 * https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials.html
 */

// snippet-start:[ec2.php.allocate_addresses.main]
$ec2Client = new Aws\Ec2\Ec2Client([
    'region' => 'us-west-2',
    'version' => '2016-11-15',
    'profile' => 'default'
]);

$instanceId = 'InstanceID';

$allocation = $ec2Client->allocateAddress(array(
    'DryRun' => false,
    'Domain' => 'vpc',
));

$result = $ec2Client->associateAddress(array(
    'DryRun' => false,
    'InstanceId' => $instanceId,
    'AllocationId' => $allocation->get('AllocationId')
));

var_dump($result);

// snippet-end:[ec2.php.allocate_addresses.main]
// snippet-end:[ec2.php.allocate_addresses.complete]