es学习笔记2：php版本es包

参考：

https://www.elastic.co/guide/cn/elasticsearch/php/current/_quickstart.html（官方php包）

https://www.elastic.co/guide/en/elasticsearch/client/php-api/current/index.html（选择es-php版本）

安装php客户端

//1，安装composer包
"elasticsearch/elasticsearch": "~7.0"

//2，初始化es客户端
require 'vendor/autoload.php';
$client = Elasticsearch\ClientBuilder::create()->build();

 

索引操作(以7.16版本为例)

创建索引

$client = ClientBuilder::create()->build();
$params = [
    'index' => 'my_index'
];

// Create the index
$response = $client->indices()->create($params);

删除索引

$params = ['index' => 'my_index'];
$response = $client->indices()->delete($params);

索引存储设置

//查看
// Get settings for one index
$params = ['index' => 'my_index'];
$response = $client->indices()->getSettings($params);

// Get settings for several indices
$params = [
    'index' => [ 'my_index', 'my_index2' ]
];
$response = $client->indices()->getSettings($params);

//设置
$params = [
    'index' => 'my_index',
    'body' => [
        'settings' => [
            'number_of_replicas' => 0,
            'refresh_interval' => -1
        ]
    ]
];

$response = $client->indices()->putSettings($params);

索引文档数据结构类型设置

//查看
// 全部索引Get mappings for all indices
$response = $client->indices()->getMapping();

// 单个Get mappings in 'my_index'
$params = ['index' => 'my_index'];
$response = $client->indices()->getMapping($params);

// 多个Get mappings for two indices
$params = [
    'index' => [ 'my_index', 'my_index2' ]
];
$response = $client->indices()->getMapping($params);

//设置
$params = [
    'index' => 'my_index',
    'body' => [
        '_source' => [
            'enabled' => true
        ],
        'properties' => [
            'first_name' => [
                'type' => 'text',
                'analyzer' => 'standard'
            ],
            'age' => [
                'type' => 'integer'
            ]
        ]
    ]
];

// Update the index mapping
$client->indices()->putMapping($params);

文档操作

添加文档

$params = [
    'index' => 'my_index',
    'id'    => 'my_id',//如果不设置id，会es自动生成一个id
    'body'  => [ 'testField' => 'abc']
];

// Document will be indexed to my_index/_doc/my_id
$response = $client->index($params);

获取文档

$params = [
    'index' => 'my_index',
    'id'    => 'my_id'
];

// Get doc at /my_index/_doc/my_id
$response = $client->get($params);

删除文档

$params = [
    'index' => 'my_index',
    'id'    => 'my_id'
];

// Delete doc at /my_index/_doc_/my_id
$response = $client->delete($params);

修改文档

//部分修改
$params = [
    'index' => 'my_index',
    'id'    => 'my_id',
    'body'  => [
        'doc' => [
            'new_field' => 'abc'
        ]
    ]
];

// Update doc at /my_index/_doc/my_id
$response = $client->update($params);

//脚本修改
$params = [
    'index' => 'my_index',
    'id'    => 'my_id',
    'body'  => [
        'script' => 'ctx._source.counter += count',
        'params' => [
            'count' => 4
        ]
    ]
];

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

//修改或新增
$params = [
    'index' => 'my_index',
    'id'    => 'my_id',
    'body'  => [
        'script' => [
            'source' => 'ctx._source.counter += params.count',
            'params' => [
                'count' => 4
            ],
        ],
        'upsert' => [
            'counter' => 1
        ],
    ]
];

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

查询文档

参考：https://www.jianshu.com/p/1e970765198c（bool多条件查询）

//字段
$params = [
    'index' => 'my_index',
    'body'  => [
        'query' => [
            'match' => [
                'testField' => 'abc'
            ]
        ]
    ]
];
$results = $client->search($params);
//bool组合
$params = [
    'index' => 'my_index',
    'body'  => [
        'query' => [
            'bool' => [
                'must' => [
                    [ 'match' => [ 'testField' => 'abc' ] ],
                    [ 'match' => [ 'testField2' => 'xyz' ] ],
                ]
            ]
        ]
    ]
];
$results = $client->search($params);

//filter
$params = [
    'index' => 'my_index',
    'body'  => [
        'query' => [
            'bool' => [
                'filter' => [
                    'term' => [ 'my_field' => 'abc' ]
                ],
                'should' => [
                    'match' => [ 'my_other_field' => 'xyz' ]
                ]
            ]
        ]
    ]
];
$results = $client->search($params);

$milliseconds = $results['took'];
$maxScore     = $results['hits']['max_score'];

$score = $results['hits']['hits'][0]['_score'];
$doc   = $results['hits']['hits'][0]['_source'];