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PHP中如何使用Elasticsearch

发布时间:2021-03-05 09:45:23 来源:亿速云 阅读:229 作者:小新 栏目:编程语言

这篇文章将为大家详细讲解有关PHP中如何使用Elasticsearch,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。

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整合,

<?php require '../vendor/autoload.php'; use Elasticsearch\ClientBuilder; class MyElasticSearch {     private $client;     // 构造函数     public function __construct()     {         $params = array(             '127.0.0.1:9200'         );         $this->client = ClientBuilder::create()->setHosts($params)->build();     }     // 创建索引     public function create_index($index_name = 'test_ik') { // 只能创建一次         $params = [             'index' => $index_name,             'body' => [                 'settings' => [                     'number_of_shards' => 5,                     'number_of_replicas' => 0                 ]             ]         ];         try {             return $this->client->indices()->create($params);         } catch (Elasticsearch\Common\Exceptions\BadRequest400Exception $e) {             $msg = $e->getMessage();             $msg = json_decode($msg,true);             return $msg;         }     }     // 删除索引     public function delete_index($index_name = 'test_ik') {         $params = ['index' => $index_name];         $response = $this->client->indices()->delete($params);         return $response;     }     // 创建文档模板     public function create_mappings($type_name = 'goods',$index_name = 'test_ik') {         $params = [             'index' => $index_name,             'type' => $type_name,             'body' => [                 $type_name => [                     '_source' => [                         'enabled' => true                     ],                     'properties' => [                         'id' => [                             'type' => 'integer', // 整型                             'index' => 'not_analyzed',                         ],                         'title' => [                             'type' => 'string', // 字符串型                             'index' => 'analyzed', // 全文搜索                             'analyzer' => 'ik_max_word'                         ],                         'content' => [                             'type' => 'string',                             'index' => 'analyzed',                             'analyzer' => 'ik_max_word'                         ],                         'price' => [                             'type' => 'integer'                         ]                     ]                 ]             ]         ];         $response = $this->client->indices()->putMapping($params);         return $response;     }     // 查看映射     public function get_mapping($type_name = 'goods',$index_name = 'test_ik') {         $params = [             'index' => $index_name,             'type' => $type_name         ];         $response = $this->client->indices()->getMapping($params);         return $response;     }     // 添加文档     public function add_doc($id,$doc,$index_name = 'test_ik',$type_name = 'goods') {         $params = [             'index' => $index_name,             'type' => $type_name,             'id' => $id,             'body' => $doc         ];         $response = $this->client->index($params);         return $response;     }     // 判断文档存在     public function exists_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {         $params = [             'index' => $index_name,             'type' => $type_name,             'id' => $id         ];         $response = $this->client->exists($params);         return $response;     }     // 获取文档     public function get_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {         $params = [             'index' => $index_name,             'type' => $type_name,             'id' => $id         ];         $response = $this->client->get($params);         return $response;     }     // 更新文档     public function update_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {         // 可以灵活添加新字段,最好不要乱添加         $params = [             'index' => $index_name,             'type' => $type_name,             'id' => $id,             'body' => [                 'doc' => [                     'title' => '苹果手机iPhoneX'                 ]             ]         ];         $response = $this->client->update($params);         return $response;     }     // 删除文档     public function delete_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {         $params = [             'index' => $index_name,             'type' => $type_name,             'id' => $id         ];         $response = $this->client->delete($params);         return $response;     }     // 查询文档 (分页,排序,权重,过滤)     public function search_doc($keywords = "电脑",$index_name = "test_ik",$type_name = "goods",$from = 0,$size = 2) {         $params = [             'index' => $index_name,             'type' => $type_name,             'body' => [                 'query' => [                     'bool' => [                         'should' => [                             [ 'match' => [ 'title' => [                                 'query' => $keywords,                                 'boost' => 3, // 权重大                             ]]],                             [ 'match' => [ 'content' => [                                 'query' => $keywords,                                 'boost' => 2,                             ]]],                         ],                     ],                 ],                 'sort' => ['price'=>['order'=>'desc']]                 , 'from' => $from, 'size' => $size             ]         ];         $results = $this->client->search($params); //        $maxScore  = $results['hits']['max_score']; //        $score = $results['hits']['hits'][0]['_score']; //        $doc   = $results['hits']['hits'][0]['_source'];         return $results;     } }
<?php require "./MyElasticSearch.php"; $es = new MyElasticSearch(); $r = $es->delete_index(); $r = $es->create_index(); $r = $es->create_mappings(); $r = $es->get_mapping(); print_r($r); $docs = []; $docs[] = ['id'=>1,'title'=>'苹果手机','content'=>'苹果手机,很好很强大。','price'=>1000]; $docs[] = ['id'=>2,'title'=>'华为手环','content'=>'荣耀手环,你值得拥有。','price'=>300]; $docs[] = ['id'=>3,'title'=>'小度音响','content'=>'智能生活,快乐每一天。','price'=>100]; $docs[] = ['id'=>4,'title'=>'王者荣耀','content'=>'游戏就玩王者荣耀,快乐生活,很好很强大。','price'=>998]; $docs[] = ['id'=>5,'title'=>'小汪糕点','content'=>'糕点就吃小汪,好吃看得见。','price'=>98]; $docs[] = ['id'=>6,'title'=>'小米手环3','content'=>'秒杀限量,快来。','price'=>998]; $docs[] = ['id'=>7,'title'=>'iPad','content'=>'iPad,不一样的电脑。','price'=>2998]; $docs[] = ['id'=>8,'title'=>'中华人民共和国','content'=>'中华人民共和国,伟大的国家。','price'=>19999]; foreach ($docs as $k => $v) {     $r = $es->add_doc($v['id'],$v);     print_r($r); } $r = $es->get_doc(); $r = $es->update_doc(); $r = $es->delete_doc(); $r = $es->exists_doc(); $r = $es->search_doc("手环 电脑"); $r = $es->search_doc("玩"); $r = $es->search_doc("中华"); print_r($r);

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