elasticsearchHow can I integrate Elasticsearch into a Yii2 application?

Integrating Elasticsearch into a Yii2 application is a straightforward process. The following steps will help you get started:

1. Install the elasticsearch-php library:

composer require elasticsearch/elasticsearch

2. Create a new component in your Yii2 application's config/main.php file:

'components' => [
  ...
  'elasticsearch' => [
    'class' => 'yii\elasticsearch\Connection',
    'nodes' => [
      ['http_address' => '127.0.0.1:9200'],
    ],
  ],
  ...
],

3. Create a Search model class in your application that extends yii\elasticsearch\ActiveRecord:

<?php

namespace app\models;

use yii\elasticsearch\ActiveRecord;

class Search extends ActiveRecord
{
    public function attributes()
    {
        return ['title', 'content'];
    }
}

4. Create an action in the controller to perform the search:

public function actionSearch()
{
    $query = Yii::$app->request->get('query');
    $results = Search::find()->query([
        'multi_match' => [
            'query' => $query,
            'fields' => ['title', 'content']
        ]
    ])->all();

    return $this->render('search', [
        'results' => $results
    ]);
}

5. Create a view file to render the search results:

<?php foreach ($results as $result): ?>
    <h2><?= $result->title ?></h2>
    <p><?= $result->content ?></p>
<?php endforeach; ?>

These steps should get you up and running with Elasticsearch in your Yii2 application.

For more information, please refer to the official Elasticsearch Yii2 extension documentation.

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