In what scenarios would it be more beneficial to utilize a search engine like Solr or Elasticsearch instead of implementing a custom search functionality in PHP?

In scenarios where you need advanced search capabilities such as full-text search, faceted search, relevance ranking, and scalability, it would be more beneficial to utilize a search engine like Solr or Elasticsearch instead of implementing a custom search functionality in PHP. These search engines are specifically designed for handling large volumes of data and complex search queries efficiently. 

// Example PHP code snippet using Solr for search functionality

// Connect to Solr server
$client = new SolrClient(array(
    'hostname' => 'localhost',
    'port' => '8983',
    'path' => '/solr/'
));

// Perform a search query
$query = new SolrQuery();
$query->setQuery('search keywords');
$query->setStart(0);
$query->setRows(10);
$query->addField('title')->addField('content');

$response = $client->query($query);
$results = $response->getResponse();

Keywords

Solr Elasticsearch search engine custom search PHP

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