本篇内容主要讲解“php操作ElasticSearch搜索引擎流程是什么”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“php操作ElasticSearch搜索引擎流程是什么”吧!
一、安装
通过composer安装
composer require 'elasticsearch/elasticsearch'二、使用
创建ES类
<?php require 'vendor/autoload.php'; //如果未设置密码$es = \Elasticsearch\ClientBuilder::create()->setHosts(['xxx.xxx.xxx.xxx'])->build(); //如果es设置了密码$es = \Elasticsearch\ClientBuilder::create()->setHosts(['http://username:password@xxx.xxx.xxx.xxx:9200'])->build()三、新建ES数据库
index 对应关系型数据（以下简称MySQL）里面的数据库，而不是对应MySQL里面的索引
<?php$params = [ 'index' => 'autofelix_db', #index的名字不能是大写和下划线开头 'body' => [ 'settings' => [ 'number_of_shards' => 5, 'number_of_replicas' => 0 ] ]];$es->indices()->create($params);四、创建表
在MySQL里面，光有了数据库还不行，还需要建立表，ES也是一样的
ES中的type对应MySQL里面的表
ES6以前，一个index有多个type，就像MySQL中一个数据库有多个表一样
但是ES6以后，每个index只允许一个type
在定义字段的时候，可以看出每个字段可以定义单独的类型
在first_name中还自定义了 分词器 ik，这是个插件，是需要单独安装的
<?php$params = [ 'index' => 'autofelix_db', 'type' => 'autofelix_table', 'body' => [ 'mytype' => [ '_source' => [ 'enabled' => true ], 'properties' => [ 'id' => [ 'type' => 'integer' ], 'first_name' => [ 'type' => 'text', 'analyzer' => 'ik_max_word' ], 'last_name' => [ 'type' => 'text', 'analyzer' => 'ik_max_word' ], 'age' => [ 'type' => 'integer' ] ] ] ]];$es->indices()->putMapping($params);五、插入数据
现在数据库和表都有了，可以往里面插入数据了
在ES里面的数据叫文档
可以多插入一些数据，等会可以模拟搜索功能
<?php$params = [ 'index' => 'autofelix_db', 'type' => 'autofelix_table', //'id' => 1, #可以手动指定id，也可以不指定随机生成 'body' => [ 'first_name' => '飞', 'last_name' => '兔', 'age' => 26 ]];$es->index($params);六、 查询所有数据
<?php$data = $es->search(); var_dump($data);七、查询单条数据
如果你在插入数据的时候指定了id，就可以查询的时候加上id
如果你在插入的时候未指定id，系统将会自动生成id，你可以通过查询所有数据后查看其id
<?php$params = [ 'index' => 'autofelix_db', 'type' => 'autofelix_table', 'id' => //你插入数据时候的id];$data = $es->get($params);八、搜索
ES精髓的地方就在于搜索
<?php$params = [ 'index' => 'autofelix_db', 'type' => 'autofelix_table', '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 'first_name' => '飞' ] ] ] ] ]]; $data = $es->search($params);var_dump($data);九、测试代码
基于Laravel环境，包含删除数据库，删除文档等操作
<?phpuse Elasticsearch\ClientBuilder;use Faker\Generator as Faker; class EsDemo{ private $EsClient = null; private $faker = null; private $index = 'autofelix_db'; private $type = 'autofelix_table'; public function __construct(Faker $faker) { $this->EsClient = ClientBuilder::create()->setHosts(['xxx.xxx.xxx.xxx'])->build(); $this->faker = $faker; } public function generateDoc($num = 100) { foreach (range(1,$num) as $item) { $this->putDoc([ 'first_name' => $this->faker->name, 'last_name' => $this->faker->name, 'age' => $this->faker->numberBetween(20,80) ]); } } public function delDoc($id) { $params = [ 'index' => $this->index, 'type' => $this->type, 'id' =>$id ]; return $this->EsClient->delete($params); } public function search($query = [], $from = 0, $size = 5) {// $query = [// 'query' => [// 'bool' => [// 'must' => [// 'match' => [// 'first_name' => 'Cronin',// ]// ],// 'filter' => [// 'range' => [// 'age' => ['gt' => 76]// ]// ]// ]//// ]// ]; $params = [ 'index' => $this->index,// 'index' => 'm*', #index 和 type 是可以模糊匹配的，甚至这两个参数都是可选的 'type' => $this->type, '_source' => ['first_name','age'], // 请求指定的字段 'body' => array_merge([ 'from' => $from, 'size' => $size ],$query) ]; return $this->EsClient->search($params); } public function getDocs($ids) { $params = [ 'index' => $this->index, 'type' => $this->type, 'body' => ['ids' => $ids] ]; return $this->EsClient->mget($params); } public function getDoc($id) { $params = [ 'index' => $this->index, 'type' => $this->type, 'id' =>$id ]; return $this->EsClient->get($params); } public function updateDoc($id) { $params = [ 'index' => $this->index, 'type' => $this->type, 'id' =>$id, 'body' => [ 'doc' => [ 'first_name' => '张', 'last_name' => '三', 'age' => 99 ] ] ]; return $this->EsClient->update($params); } public function putDoc($body = []) { $params = [ 'index' => $this->index, 'type' => $this->type, // 'id' => 1, #可以手动指定id，也可以不指定随机生成 'body' => $body ]; $this->EsClient->index($params); } public function delAllIndex() { $indexList = $this->esStatus()['indices']; foreach ($indexList as $item => $index) { $this->delIndex(); } } public function esStatus() { return $this->EsClient->indices()->stats(); } public function createIndex() { $this->delIndex(); $params = [ 'index' => $this->index, 'body' => [ 'settings' => [ 'number_of_shards' => 2, 'number_of_replicas' => 0 ] ] ]; $this->EsClient->indices()->create($params); } public function checkIndexExists() { $params = [ 'index' => $this->index ]; return $this->EsClient->indices()->exists($params); } public function delIndex() { $params = [ 'index' => $this->index ]; if ($this->checkIndexExists()) { $this->EsClient->indices()->delete($params); } } public function getMapping() { $params = [ 'index' => $this->index ]; return $this->EsClient->indices()->getMapping($params); } public function createMapping() { $this->createIndex(); $params = [ 'index' => $this->index, 'type' => $this->type, 'body' => [ $this->type => [ '_source' => [ 'enabled' => true ], 'properties' => [ 'id' => [ 'type' => 'integer' ], 'first_name' => [ 'type' => 'text', 'analyzer' => 'ik_max_word' ], 'last_name' => [ 'type' => 'text', 'analyzer' => 'ik_max_word' ], 'age' => [ 'type' => 'integer' ] ] ] ] ]; $this->EsClient->indices()->putMapping($params); $this->generateDoc(); }}到此，相信大家对“php操作ElasticSearch搜索引擎流程是什么”有了更深的了解，不妨来实际操作一番吧！这里是编程网网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
