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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;

use Google\Cloud\Spanner\SpannerClient;

use Google\Cloud\Spanner\Database;

use Google\Cloud\Spanner\StructType;

use Google\Cloud\Spanner\StructValue;

/**

* Queries sample data from the database using a struct.

* Example:

* ```

* query_data_with_struct($instanceId, $databaseId);

* ```

*

* @param string $instanceId The Spanner instance ID.

* @param string $databaseId The Spanner database ID.

*/

function query_data_with_struct($instanceId, $databaseId)

{

$spanner = new SpannerClient();

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

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

// [START spanner_create_struct_with_data]

$nameValue = (new StructValue)

->add('FirstName', 'Elena')

->add('LastName', 'Campbell');

$nameType = (new StructType)

->add('FirstName', Database::TYPE_STRING)

->add('LastName', Database::TYPE_STRING);

// [END spanner_create_struct_with_data]

// [START spanner_query_data_with_struct]

$results = $database->execute(

'SELECT SingerId FROM Singers ' .

'WHERE STRUCT<FirstName STRING, LastName STRING>' .

'(FirstName, LastName) = @name',

[

'parameters' => [

'name' => $nameValue

],

'types' => [

'name' => $nameType

]

]

);

foreach ($results as $row) {

printf('SingerId: %s' . PHP_EOL,

$row['SingerId']);

}

// [END spanner_query_data_with_struct]

}