【elasticsearch】php操作类

下载PHP包

https://github.com/elastic/elasticsearch-php

# 选择合适的与PHP版本对应的包版本
composer require elasticsearch/elasticsearch ~7.8

代码：

<?php

namespace app\service;

use Elasticsearch\ClientBuilder;

/**
 * ES服务器实现者
 * Class Elasticsearch
 * @package app\service
 */
class Elasticsearch
{
    protected $host = [
        '127.0.0.1:9200'
    ];
    protected $client;
    protected $index;

    public function __construct($index)
    {
        if(!isset($this->indexMappingsConf()[$index])){throw new \Exception($index.':该索引未配置映射关系');}
        $this->client = ClientBuilder::create()->setHosts($this->host)->build();
        $this->index = $index;
    }
	
	 /**
     * 索引映射关系配置
     * @return \string[][][]
     */
    private function indexMappingsConf(){
        return array(
            'goods' => [
                'goods_name' => [
                    'type' => 'text',
                    'analyzer' => 'ik_max_word',
                    'copy_to' => 'all'
                ],
                'cat_name' => [
                    'type' => 'text',
                    'analyzer' => 'ik_max_word',
                    'copy_to' => 'all'
                ],
                'price' => [
                    'type' => 'float'
                ],
                'is_imperfect' => [
                    'type' => 'byte'
                ]
            ],
        );
    }

    /**
     * 文档是否存在
     * @param $id
     * @return bool
     */
    public function exists($id){
        $params = ['index' => $this->index,'id' => $id];
        return $this->client->exists($params);
    }

    /**
     * 获取文档全部内容
     * @param $id
     * @return array|callable
     */
    public function get($id){
        $params = ['index' => $this->index,'id' => $id];
        return $this->client->get($params);
    }

    /**
     * 获取指定文档数据
     * @param $id
     * @return array|callable
     */
    public function find($id){
        $params = ['index' => $this->index,'id' => $id];
        return $this->client->getSource($params);
    }


    public function search($body=[]){
        $params = [
            'index' => $this->index,
            'body'  => $body
        ];
        return $this->client->search($params);
    }

    /**
     * 更新单个文档
     * @param $data
     * @return array|callable
     * @throws \Exception
     */
    public function save($data){
        if(empty($data)){throw new \Exception('更新参数不能为空');}
        if(!isset($data['id'])){throw new \Exception('id不能为空');}
        $params = [
            'index' => $this->index,
            'id' => $data['id'],
            'body' => $data
        ];
        return $this->client->index($params);
    }

    /**
     * 批量更新文档或替换已有文档
     * @param $datas
     * @return array|callable|mixed
     */
    public function saveAll($datas){
        return $this->client->bulk($this->getBulkParams($datas));
    }

    /**
     * 创建索引
     * @return array|mixed
     */
    public function createIndex(){
        $params = [
            'index' => $this->index,
            'body' => [
                'settings' => [
                    'number_of_shards' => 1,
                    'number_of_replicas' => 0
                ],
                'mappings' => [
                    'properties' => $this->indexMappingsConf()[$this->index]
                ]
            ],
//                'client' => [ 'ignore' => [404,400] ]
        ];
        return $this->client->indices()->create($params);
    }

    private function getBulkParams($datas){
        $params = ['index' => $this->index];
        switch ($this->index){
            case 'goods':
                foreach ($datas as $key=>$row){
                    $params['body'][]=array(
                        'index' => array(
                            '_id'=>$row['id']
                        ),
                    );
                    $params['body'][]=array(
                        'goods_name'=>$row['goods_name'],
                        'cat_name'=>$row['cat_name'],
                        'price'=>(float)$row['price'],
                        'is_imperfect'=>(int)$row['is_imperfect'],
                    );
                }
                break;
        }
        return $params;
    }

}

调用示例：

$goodsElasticsearchService = new \app\service\Elasticsearch('goods');

$res = $goodsElasticsearchService->search();

dump($res);