iframe-proxy | Sunbelt Computer Software

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 * Copyright 2020 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/master/spanner/README.md
namespace Google\Cloud\Samples\Spanner;
// [START spanner_list_backups]
use Google\Cloud\Spanner\SpannerClient;
 * List backups in an instance.
 * Example:
 * list_backups($instanceId, $databaseId);
 * @param string $instanceId The Spanner instance ID.
function list_backups($instanceId)
    $spanner = new SpannerClient();
    $instance = $spanner->instance($instanceId);
    // List all backups.
    print('All backups:' . PHP_EOL);
    foreach ($instance->backups() as $backup) {
        print('  ' . basename($backup->name()) . PHP_EOL);
    // List all backups that contain a name.
    $backupName = 'backup-test-';
    print("All backups with name containing \"$backupName\":" . PHP_EOL);
    $filter = "name:$backupName";
    foreach ($instance->backups(['filter' => $filter]) as $backup) {
        print('  ' . basename($backup->name()) . PHP_EOL);
    // List all backups for a database that contains a name.
    $databaseId = 'test-';
    print("All backups for a database which name contains \"$databaseId\":" . PHP_EOL);
    $filter = "database:$databaseId";
    foreach ($instance->backups(['filter' => $filter]) as $backup) {
        print('  ' . basename($backup->name()) . PHP_EOL);
    // List all backups that expire before a timestamp.
    $expireTime = $spanner->timestamp(new \DateTime('+30 days'));
    print("All backups that expire before $expireTime:" . PHP_EOL);
    $filter = "expire_time < \"$expireTime\"";
    foreach ($instance->backups(['filter' => $filter]) as $backup) {
        print('  ' . basename($backup->name()) . PHP_EOL);
    // List all backups with a size greater than some bytes.
    $size = 500;
    print("All backups with size greater than $size bytes:" . PHP_EOL);
    $filter = "size_bytes > $size";
    foreach ($instance->backups(['filter' => $filter]) as $backup) {
        print('  ' . basename($backup->name()) . PHP_EOL);
    // List backups that were created after a timestamp that are also ready.
    $createTime = $spanner->timestamp(new \DateTime('-1 day'));
    print("All backups created after $createTime:" . PHP_EOL);
    $filter = "create_time >= \"$createTime\" AND state:READY";
    foreach ($instance->backups(['filter' => $filter]) as $backup) {
        print('  ' . basename($backup->name()) . PHP_EOL);
    // List backups with pagination.
    print('All backups with pagination:' . PHP_EOL);
    $pages = $instance->backups(['pageSize' => 2])->iterateByPage();
    foreach ($pages as $pageNumber => $page) {
        print("All backups, page $pageNumber:" . PHP_EOL);
        foreach ($page as $backup) {
            print('  ' . basename($backup->name()) . PHP_EOL);
// [END spanner_list_backups]
// 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);
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