Managing Amazon CloudFront invalidations using the CloudFront API and the AWS SDK for PHP Version 3

Amazon CloudFront caches copies of static and dynamic files in worldwide edge locations. To remove or update a file on all edge locations, create an invalidation for each file or for a group of files.

Each calendar month, your first 1,000 invalidations are free. To learn more about removing content from a CloudFront edge location, see Invalidating Files.

The following examples show how to:

All the example code for the AWS SDK for PHP is available here on GitHub.

Credentials

Before running the example code, configure your AWS credentials, as described in Credentials. Then import the AWS SDK for PHP, as described in Basic usage.

For more information about using Amazon CloudFront, see the Amazon CloudFront Developer Guide.

Create a distribution invalidation

Create a CloudFront distribution invalidation by specifying the path location for the files you need to remove. This example invalidates all files in the distribution, but you can identify specific files under Items.

To create a CloudFront distribution invalidation, use the CreateInvalidation operation.

Imports

require 'vendor/autoload.php';

use Aws\Exception\AwsException;

Sample Code

function createInvalidation(
    $cloudFrontClient,
    $distributionId,
    $callerReference,
    $paths,
    $quantity
) {
    try {
        $result = $cloudFrontClient->createInvalidation([
            'DistributionId' => $distributionId,
            'InvalidationBatch' => [
                'CallerReference' => $callerReference,
                'Paths' => [
                    'Items' => $paths,
                    'Quantity' => $quantity,
                ],
            ]
        ]);

        $message = '';

        if (isset($result['Location'])) {
            $message = 'The invalidation location is: ' . $result['Location'];
        }

        $message .= ' and the effective URI is ' . $result['@metadata']['effectiveUri'] . '.';

        return $message;
    } catch (AwsException $e) {
        return 'Error: ' . $e->getAwsErrorMessage();
    }
}

function createTheInvalidation()
{
    $distributionId = 'E17G7YNEXAMPLE';
    $callerReference = 'my-unique-value';
    $paths = ['/*'];
    $quantity = 1;

    $cloudFrontClient = new Aws\CloudFront\CloudFrontClient([
        'profile' => 'default',
        'version' => '2018-06-18',
        'region' => 'us-east-1'
    ]);

    echo createInvalidation(
        $cloudFrontClient,
        $distributionId,
        $callerReference,
        $paths,
        $quantity
    );
}

// Uncomment the following line to run this code in an AWS account.
// createTheInvalidation();

Get a distribution invalidation

To retrieve the status and details about a CloudFront distribution invalidation, use the GetInvalidation operation.

Imports

require 'vendor/autoload.php';

use Aws\Exception\AwsException;

Sample Code

function getInvalidation($cloudFrontClient, $distributionId, $invalidationId)
{
    try {
        $result = $cloudFrontClient->getInvalidation([
            'DistributionId' => $distributionId,
            'Id' => $invalidationId,
        ]);

        $message = '';

        if (isset($result['Invalidation']['Status'])) {
            $message = 'The status for the invalidation with the ID of ' .
                $result['Invalidation']['Id'] . ' is ' .
                $result['Invalidation']['Status'];
        }

        if (isset($result['@metadata']['effectiveUri'])) {
            $message .= ', and the effective URI is ' .
                $result['@metadata']['effectiveUri'] . '.';
        } else {
            $message = 'Error: Could not get information about ' .
                'the invalidation. The invalidation\'s status ' .
                'was not available.';
        }

        return $message;
    } catch (AwsException $e) {
        return 'Error: ' . $e->getAwsErrorMessage();
    }
}

function getsAnInvalidation()
{
    $distributionId = 'E1BTGP2EXAMPLE';
    $invalidationId = 'I1CDEZZEXAMPLE';

    $cloudFrontClient = new Aws\CloudFront\CloudFrontClient([
        'profile' => 'default',
        'version' => '2018-06-18',
        'region' => 'us-east-1'
    ]);

    echo getInvalidation($cloudFrontClient, $distributionId, $invalidationId);
}

// Uncomment the following line to run this code in an AWS account.
// getsAnInvalidation();

List distribution invalidations

To list all current CloudFront distribution invalidations, use the ListInvalidations operation.

Imports

require 'vendor/autoload.php';

use Aws\Exception\AwsException;

Sample Code

function listInvalidations($cloudFrontClient, $distributionId)
{
    try {
        $result = $cloudFrontClient->listInvalidations([
            'DistributionId' => $distributionId
        ]);
        return $result;
    } catch (AwsException $e) {
        exit('Error: ' . $e->getAwsErrorMessage());
    }
}

function listTheInvalidations()
{
    $distributionId = 'E1WICG1EXAMPLE';

    $cloudFrontClient = new Aws\CloudFront\CloudFrontClient([
        'profile' => 'default',
        'version' => '2018-06-18',
        'region' => 'us-east-1'
    ]);

    $invalidations = listInvalidations(
        $cloudFrontClient,
        $distributionId
    );

    if (isset($invalidations['InvalidationList'])) {
        if ($invalidations['InvalidationList']['Quantity'] > 0) {
            foreach ($invalidations['InvalidationList']['Items'] as $invalidation) {
                echo 'The invalidation with the ID of ' . $invalidation['Id'] .
                    ' has the status of ' . $invalidation['Status'] . '.' . "\n";
            }
        } else {
            echo 'Could not find any invalidations for the specified distribution.';
        }
    } else {
        echo 'Error: Could not get invalidation information. Could not get ' .
            'information about the specified distribution.';
    }
}

// Uncomment the following line to run this code in an AWS account.
// listTheInvalidations();