PHP集成Elasticsearch实现快速搜索

• 从官网下载并启动 Elasticsearch（默认监听 9200 端口）
• 可通过浏览器访问 http://localhost:9200 验证是否启动成功
• 推荐使用 Docker 快速部署：docker run -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" docker.elastic.co/elasticsearch/elasticsearch:8.11.3

composer require elasticsearch/elasticsearch

$client = \Elasticsearch\ClientBuilder::create()
    ->setHosts(['127.0.0.1:9200'])
    ->build();

$params = [
    'index' => 'articles',
    'id'    => 1,
    'body'  => [
        'title'   => 'PHP 搜索集成指南',
        'content' => '本文介绍如何在 PHP 中调用 Elasticsearch 实现搜索功能'
    ]
];

$response = $client->index($params);

$params = [
    'index' => 'articles',
    'body'  => [
        'query' => [
            'multi_match' => [
                'query'  => 'PHP 搜索',
                'fields' => ['title', 'content']
            ]
        ]
    ]
];

$response = $client->search($params);
foreach ($response['hits']['hits'] as $hit) {
    echo '标题：' . $hit['_source']['title'] . '<br>';
}

'highlight' => [
    'fields' => [
        'title'   => new \stdClass(),
        'content' => new \stdClass()
    ]
]