generate_encryption_key.php

<?php
/**
 * Copyright 2016 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * For instructions on how to run the full sample:
 *
 * @see https://github.com/GoogleCloudPlatform/php-docs-samples/tree/main/storage/README.md
 */

namespace Google\Cloud\Samples\Storage;

# [START storage_generate_encryption_key]

/**
 * Generate a base64 encoded encryption key for Google Cloud Storage.
 */
function generate_encryption_key(): void
{
    $key = random_bytes(32);
    $encodedKey = base64_encode($key);
    printf('Your encryption key: %s' . PHP_EOL, $encodedKey);
}
# [END storage_generate_encryption_key]

// The following 2 lines are only needed to run the samples
require_once __DIR__ . '/../../testing/sample_helpers.php';
\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);