PHP操作Elasticsearch7.6

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PHP操作Elasticsearch 7.6

Elasticsearch是一个开源、分布式、RESTful搜索和分析引擎。PHP通过Elasticsearch PHP API（包括Elasticsearch和Elasticsearch 7）与Elasticsearch交互。

安装Elasticsearch PHP API

composer require elasticsearch/elasticsearch

配置

$client = new ElasticsearchClient([
    "hosts" => [
        "localhost:9200"
    ]
]);

创建索引

$client->indices()->create([
    "index" => "my_index"
]);

添加文档

$client->index([
    "index" => "my_index",
    "type" => "my_type",
    "id" => "1",
    "body" => [
        "name" => "John Doe",
        "age" => 30
    ]
]);

搜索文档

$query = [
    "query" => [
        "match" => [
            "name" => "John Doe"
        ]
    ]
];

$results = $client->search([
    "index" => "my_index",
    "type" => "my_type",
    "body" => $query
]);

更新文档

$query = [
    "script" => [
        "source" => "ctx._source.age += 1"
    ]
];

$client->update([
    "index" => "my_index",
    "type" => "my_type",
    "id" => "1",
    "body" => $query
]);

删除文档

$client->delete([
    "index" => "my_index",
    "type" => "my_type",
    "id" => "1"
]);

聚合

$query = [
    "aggs" => [
        "age_group" => [
            "terms" => [
                "field" => "age",
                "size" => 10
            ]
        ]
    ]
];

$results = $client->search([
    "index" => "my_index",
    "type" => "my_type",
    "body" => $query
]);

实时索引

$client->indices()->putMapping([
    "index" => "my_index",
    "type" => "my_type",
    "body" => [
        "_doc" => [
            "_source" => [
                "enabled" => false
            ]
        ]
    ]
]);

使用Cloud Provider

Elasticsearch 提供托管服务，例如 Amazon Elasticsearch Service (AES) 和 Azure Elasticsearch Service (AES)。可以使用 PHP API 连接到这些服务。

$client = new ElasticsearchClient([
    "cloud" => [
        "id" => "your_cloud_id",
        "key" => "your_api_key"
    ]
]);

最佳实践

• 使用正确的数据类型
• 优化查询
• 利用缓存
• 监控性能

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