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<?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/master/spanner/README.md

*/

namespace Google\Cloud\Samples\Spanner;

// [START spanner_read_data]

use Google\Cloud\Spanner\SpannerClient;

/**

* Reads sample data from the database.

* Example:

* ```

* read_data($instanceId, $databaseId);

* ```

*

* @param string $instanceId The Spanner instance ID.

* @param string $databaseId The Spanner database ID.

*/

function read_data(string $instanceId, string $databaseId): void

{

$spanner = new SpannerClient();

$instance = $spanner->instance($instanceId);

$database = $instance->database($databaseId);

$keySet = $spanner->keySet(['all' => true]);

$results = $database->read(

'Albums',

$keySet,

['SingerId', 'AlbumId', 'AlbumTitle']

);

foreach ($results->rows() as $row) {

printf('SingerId: %s, AlbumId: %s, AlbumTitle: %s' . PHP_EOL,

$row['SingerId'], $row['AlbumId'], $row['AlbumTitle']);

}

}

// [END spanner_read_data]

// 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);