PHP中使用Elasticsearch
composer require elasticsearch/elasticsearch
会自动加载合适的版本!我的php是5.6的,它会自动加载5.3的elasticsearch版本!
Using version ^5.3 for elasticsearch/elasticsearch
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 4 installs, 0 updates, 0 removals
- Installing react/promise (v2.7.0): Downloading (100%)
- Installing guzzlehttp/streams (3.0.0): Downloading (100%)
- Installing guzzlehttp/ringphp (1.1.0): Downloading (100%)
- Installing elasticsearch/elasticsearch (v5.3.2): Downloading (100%)
Writing lock file
Generating autoload files
简单使用
<?php
class MyElasticSearch
{
private $es;
// 构造函数
public function __construct()
{
include('../vendor/autoload.php');
$params = array(
'127.0.0.1:9200'
);
$this->es = \Elasticsearch\ClientBuilder::create()->setHosts($params)->build();
}
public function search() {
$params = [
'index' => 'megacorp',
'type' => 'employee',
'body' => [
'query' => [
'constant_score' => [ //非评分模式执行
'filter' => [ //过滤器,不会计算相关度,速度快
'term' => [ //精确查找,不支持多个条件
'about' => '谭'
]
]
]
]
]
];
$res = $this->es->search($params);
print_r($res);
}
}
<?php
require "./MyElasticSearch.php";
$es = new MyElasticSearch();
$es->search();
执行结果
Array
(
[took] => 2
[timed_out] =>
[_shards] => Array
(
[total] => 5
[successful] => 5
[skipped] => 0
[failed] => 0
)
[hits] => Array
(
[total] => 1
[max_score] => 1
[hits] => Array
(
[0] => Array
(
[_index] => megacorp
[_type] => employee
[_id] => 3
[_score] => 1
[_source] => Array
(
[first_name] => 李
[last_name] => 四
[age] => 24
[about] => 一个PHP程序员,热爱编程,谭康很帅,充满激情。
[interests] => Array
(
[0] => 英雄联盟
)
)
)
)
)
)
下面是官方的一些样例:
初始化
require '../vendor/autoload.php';
use Elasticsearch\ClientBuilder;
$client = ClientBuilder::create()->build();
增加配置
$hosts = [
'127.0.01:9200', // IP + Port
];
$client = ClientBuilder::create() // Instantiate a new ClientBuilder
->setHosts($hosts) // Set the hosts
->build(); // Build the client object
或
$hosts = [
'127.0.01:9200', // IP + Port
];
$clientBuilder = ClientBuilder::create(); // Instantiate a new ClientBuilder
$clientBuilder->setHosts($hosts); // Set the hosts
$client = $clientBuilder->build(); // Build the client object
插入一个文档
// Index 一个文档
$params = [
'index' => 'my_index',
'type' => 'my_type',
'id' => 'my_id',
'body' => ['testField' => 'abc']
];
$response = $client->index($params);
print_r($response);
获取一个文档
$params = [
'index' => 'my_index',
'type' => 'my_type',
'id' => 'my_id'
];
$response = $client->get($params);
print_r($response);
查询一个文档
$params = [
'index' => 'my_index',
'type' => 'my_type',
'body' => [
'query' => [
'match' => [
'testField' => 'abc'
]
]
]
];
$response = $client->search($params);
print_r($response);
删除一个文档
$params = [
'index' => 'my_index',
'type' => 'my_type',
'id' => 'my_id'
];
$response = $client->delete($params);
print_r($response);
结果如下
Array
(
[_index] => my_index
[_type] => my_type
[_id] => my_id
[_version] => 3
[result] => deleted
[_shards] => Array
(
[total] => 2
[successful] => 1
[failed] => 0
)
[_seq_no] => 2
[_primary_term] => 1
)
删除一个索引
$deleteParams = [
'index' => 'my_index'
];
$response = $client->indices()->delete($deleteParams);
print_r($response);
创建一个索引
$params = [
'index' => 'my_index',
'body' => [
'settings' => [
'number_of_shards' => 2,
'number_of_replicas' => 0
]
]
];
$response = $client->indices()->create($params);
print_r($response);