PHP 中使用 Elasticsearch 进行用户画像分析与推荐

PUT /users
{
  "mappings": {
    "properties": {
      "name": { "type": "text" },
      "age": { "type": "integer" },
      "gender": {"type": "keyWord"},
      "interests": {"type": "keyword"}
    }
  }
}

POST /users/_doc/1
{
  "name": "John",
  "age": 25,
  "gender": "male",
  "interests": ["music", "sports"]
}

POST /users/_doc/2
{
  "name": "Lisa",
  "age": 30,
  "gender": "female",
  "interests": ["movies", "travel"]
}

GET /users/_search
{
  "query": {
    "bool": {
      "must": [
        { "range": { "age": { "gte": 25, "lte": 30 } } },
        { "match": { "gender": "female" } },
        { "match": { "interests": "movies" } }
      ]
    }
  }
}

GET /users/_search
{
  "query": {
    "bool": {
      "should": [
        { "range": { "age": { "gte": 25, "lte": 30 } } },
        { "match": { "gender": "female" } },
        { "match": { "interests": "movies" } }
      ]
    }
  }
}

// 引入 Elasticsearch PHP 客户端
require 'vendor/autoload.php';

// 创建 Elasticsearch 客户端实例
$client = ElasticsearchClientBuilder::create()->build();

// 查询用户画像
$params = [
    'index' => 'users',
    'body' => [
        'query' => [
            'bool' => [
                'must' => [
                    ['range' => ['age' => ['gte' => 25, 'lte' => 30]]],
                    ['match' => ['gender' => 'female']],
                    ['match' => ['interests' => 'movies']]
                ]
            ]
        ]
    ]
];

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

// 打印查询结果
foreach ($response['hits']['hits'] as $hit) {
    echo $hit['_source']['name'] . "
";
}

// 进行用户推荐，代码类似于查询用户画像的示例