php-elasticaHow do I use PHP Elastica to create an index?

1. First, install the Elastica library into your project using composer: composer require "elastica/elastica:~2.0"

2. Next, create a new \Elastica\Client instance and set the connection parameters for the Elasticsearch server:

$client = new \Elastica\Client(['host' => 'localhost', 'port' => 9200]);

3. Then, create an index with the desired settings:

$index = $client->getIndex('my_index');
$index->create(array(
    'number_of_shards' => 3,
    'number_of_replicas' => 2
), true);

4. Finally, add documents to the index:

$doc1 = new \Elastica\Document(1, array('title' => 'Foo', 'content' => 'Foo bar'));
$doc2 = new \Elastica\Document(2, array('title' => 'Bar', 'content' => 'Bar foo'));
$docs = array($doc1, $doc2);

$index->addDocuments($docs);

5. You can then check the index status with:

$status = $index->getStatus();
echo $status->getNumberOfDocuments(); // Outputs: 2

6. To learn more about creating and managing indexes with Elastica, refer to the official documentation.

7. You can also find more detailed examples in the Elastica GitHub repository.

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