PHP中如何利用ElasticSearch进行数据查询和全文搜索?(如何在PHP中集成ElasticSearch进行数据检索和全文搜索?)
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2024-04-02 17:21
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利用 PHP 集成 Elasticsearch 进行数据查询和全文搜索
概况 Elasticsearch 是一款开源的分布式搜索和分析引擎,广泛用于存储和搜索大数据集。PHP 作为一种流行的 Web 编程语言,可以通过 Elasticsearch PHP 客户端库与 Elasticsearch 集成,从而实现高效的数据查询和全文搜索。
安装 Elasticsearch PHP 客户端库
composer require elasticsearch/elasticsearch
建立 Elasticsearch 连接
$client = ElasticsearchClientBuilder::create()
->setHosts(["localhost:9200"])
->build();
数据查询 按 ID 查询
$params = [
"index" => "my_index",
"id" => "my_id"
];
$result = $client->get($params);
筛选查询
$params = [
"index" => "my_index",
"body" => [
"query" => [
"term" => [
"field_name" => "value"
]
]
]
];
$result = $client->search($params);
全文搜索 简单文本查询
$params = [
"index" => "my_index",
"body" => [
"query" => [
"match" => [
"field_name" => "query"
]
]
]
];
$result = $client->search($params);
布尔查询
$params = [
"index" => "my_index",
"body" => [
"query" => [
"bool" => [
"must" => [
[
"term" => [
"field_name" => "value1"
]
]
],
"must_not" => [
[
"term" => [
"field_name" => "value2"
]
]
],
"should" => [
[
"term" => [
"field_name" => "value3"
]
]
]
]
]
]
];
$result = $client->search($params);
聚合 求和聚合
$params = [
"index" => "my_index",
"body" => [
"aggs" => [
"total_amount" => [
"sum" => [
"field" => "amount"
]
]
]
]
];
$result = $client->search($params);
直方图聚合
$params = [
"index" => "my_index",
"body" => [
"aggs" => [
"age_distribution" => [
"histogram" => [
"field" => "age",
"interval" => 10
]
]
]
]
];
$result = $client->search($params);
实战示例 下例演示如何使用 Elasticsearch PHP 客户端进行数据查询和全文搜索:
require "vendor/autoload.php";
$client = ElasticsearchClientBuilder::create()
->setHosts(["localhost:9200"])
->build();
// 数据查询
$params = [
"index" => "my_index",
"id" => "my_id"
];
$document = $client->get($params);
// 全文搜索
$params = [
"index" => "my_index",
"body" => [
"query" => [
"match" => [
"title" => "Elasticsearch PHP"
]
]
]
];
$results = $client->search($params);
// 输出结果
echo "<pre>";
print_r($document);
print_r($results);
echo "</pre>";
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