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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.

*/

# [START language_quickstart]

# Includes the autoloader for libraries installed with composer

require __DIR__ . '/vendor/autoload.php';

# Imports the Google Cloud client library

use Google\Cloud\Language\LanguageClient;

# Your Google Cloud Platform project ID

$projectId = 'YOUR_PROJECT_ID';

# Instantiates a client

$language = new LanguageClient([

'projectId' => $projectId

]);

# The text to analyze

$text = 'Hello, world!';

# Detects the sentiment of the text

$annotation = $language->analyzeSentiment($text);

$sentiment = $annotation->sentiment();

echo 'Text: ' . $text . '

Sentiment: ' . $sentiment['score'] . ', ' . $sentiment['magnitude'];

# [END language_quickstart]

return $sentiment;