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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.

*/

namespace Google\Cloud\Samples\Logging;

use Google\Cloud\Core\Iterator\ItemIterator;

// [START logging_write_log_entry]

// [START logging_list_log_entries]

// [START logging_delete_log]

use Google\Cloud\Logging\LoggingClient;

// [END logging_write_log_entry]

// [END logging_list_log_entries]

// [END logging_delete_log]

// [START logging_write_log_entry]

/** Write a log message via the Stackdriver Logging API.

*

* @param string $projectId The Google project ID.

* @param string $loggerName The name of the logger.

* @param string $message The log message.

*/

function write_log($projectId, $loggerName, $message)

{

$logging = new LoggingClient(['projectId' => $projectId]);

$logger = $logging->logger($loggerName, [

'resource' => [

'type' => 'gcs_bucket',

'labels' => [

'bucket_name' => 'my_bucket'

]

]

]);

$entry = $logger->entry($message);

$logger->write($entry);

printf("Wrote a log to a logger '%s'." . PHP_EOL, $loggerName);

}

// [END logging_write_log_entry]

// [START logging_list_log_entries]

/** Return an iterator for listing log entries.

*

* @param string $projectId The Google project ID.

* @param string $loggerName The name of the logger.

* @return ItemIterator<Google\Cloud\Logging\Entry>

*/

function list_entries($projectId, $loggerName)

{

$logging = new LoggingClient(['projectId' => $projectId]);

$loggerFullName = sprintf('projects/%s/logs/%s', $projectId, $loggerName);

$oneDayAgo = date(\DateTime::RFC3339, strtotime('-24 hours'));

$filter = sprintf(

'logName = "%s" AND timestamp >= "%s"',

$loggerFullName,

$oneDayAgo

);

$options = [

'filter' => $filter,

];

$entries = $logging->entries($options);

// Print the entries

foreach ($entries as $entry) {

/* @var $entry \Google\Cloud\Logging\Entry */

$entryInfo = $entry->info();

if (isset($entryInfo['textPayload'])) {

$entryText = $entryInfo['textPayload'];

} else {

$entryPayload = [];

foreach ($entryInfo['jsonPayload'] as $key => $value) {

$entryPayload[] = "$key: $value";

}

$entryText = '{' . implode(', ', $entryPayload) . '}';

}

printf("%s : %s" . PHP_EOL, $entryInfo['timestamp'], $entryText);

}

}

// [END logging_list_log_entries]

// [START logging_delete_log]

/** Delete a logger and all its entries.

*

* @param string $projectId The Google project ID.

* @param string $loggerName The name of the logger.

*/

function delete_logger($projectId, $loggerName)

{

$logging = new LoggingClient(['projectId' => $projectId]);

$logger = $logging->logger($loggerName);

$logger->delete();

printf("Deleted a logger '%s'." . PHP_EOL, $loggerName);

}

// [END logging_delete_log]