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這篇文章將為大家詳細講解有關PHP中如何使用Elasticsearch，小編覺得挺實用的，因此分享給大家做個參考，希望大家閱讀完這篇文章后可以有所收獲。
PHP中使用Elasticsearch
composer require elasticsearch/elasticsearch
會自動加載合適的版本！我的php是5.6的，它會自動加載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
簡單使用
<?php
class MyElasticSearch
{
private $es;
// 構造函數
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' => [ //非評分模式執行
'filter' => [ //過濾器，不會計算相關度，速度快
'term' => [ //精確查找，不支持多個條件
'about' => '譚'
]
]
]
]
]
];
$res = $this->es->search($params);
print_r($res);
}
}<?php require "./MyElasticSearch.php"; $es = new MyElasticSearch(); $es->search();
執行結果
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] => 一個PHP程序員，熱愛編程，譚康很帥，充滿激情。 [interests] => Array ( [0] => 英雄聯盟 ) ) ) ) ) )
下面是官方的一些樣例整合，
<?php
require '../vendor/autoload.php';
use Elasticsearch\ClientBuilder;
class MyElasticSearch
{
private $client;
// 構造函數
public function __construct()
{
$params = array(
'127.0.0.1:9200'
);
$this->client = ClientBuilder::create()->setHosts($params)->build();
}
// 創建索引
public function create_index($index_name = 'test_ik') { // 只能創建一次
$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 $msg;
}
}
// 刪除索引
public function delete_index($index_name = 'test_ik') {
$params = ['index' => $index_name];
$response = $this->client->indices()->delete($params);
return $response;
}
// 創建文檔模板
public function create_mappings($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 $response;
}
// 添加文檔
public function add_doc($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 $response;
}
// 判斷文檔存在
public function exists_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {
$params = [
'index' => $index_name,
'type' => $type_name,
'id' => $id
];
$response = $this->client->exists($params);
return $response;
}
// 獲取文檔
public function get_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {
$params = [
'index' => $index_name,
'type' => $type_name,
'id' => $id
];
$response = $this->client->get($params);
return $response;
}
// 更新文檔
public function update_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {
// 可以靈活添加新字段,最好不要亂添加
$params = [
'index' => $index_name,
'type' => $type_name,
'id' => $id,
'body' => [
'doc' => [
'title' => '蘋果手機iPhoneX'
]
]
];
$response = $this->client->update($params);
return $response;
}
// 刪除文檔
public function delete_doc($id = 1,$index_name = 'test_ik',$type_name = 'goods') {
$params = [
'index' => $index_name,
'type' => $type_name,
'id' => $id
];
$response = $this->client->delete($params);
return $response;
}
// 查詢文檔 (分頁，排序，權重，過濾)
public function search_doc($keywords = "電腦",$index_name = "test_ik",$type_name = "goods",$from = 0,$size = 2) {
$params = [
'index' => $index_name,
'type' => $type_name,
'body' => [
'query' => [
'bool' => [
'should' => [
[ 'match' => [ 'title' => [
'query' => $keywords,
'boost' => 3, // 權重大
]]],
[ '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'=>'蘋果手機','content'=>'蘋果手機，很好很強大。','price'=>1000];
$docs[] = ['id'=>2,'title'=>'華為手環','content'=>'榮耀手環，你值得擁有。','price'=>300];
$docs[] = ['id'=>3,'title'=>'小度音響','content'=>'智能生活，快樂每一天。','price'=>100];
$docs[] = ['id'=>4,'title'=>'王者榮耀','content'=>'游戲就玩王者榮耀，快樂生活，很好很強大。','price'=>998];
$docs[] = ['id'=>5,'title'=>'小汪糕點','content'=>'糕點就吃小汪，好吃看得見。','price'=>98];
$docs[] = ['id'=>6,'title'=>'小米手環3','content'=>'秒殺限量，快來。','price'=>998];
$docs[] = ['id'=>7,'title'=>'iPad','content'=>'iPad，不一樣的電腦。','price'=>2998];
$docs[] = ['id'=>8,'title'=>'中華人民共和國','content'=>'中華人民共和國，偉大的國家。','price'=>19999];
foreach ($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("手環 電腦");
$r = $es->search_doc("玩");
$r = $es->search_doc("中華");
print_r($r);關于“PHP中如何使用Elasticsearch”這篇文章就分享到這里了，希望以上內容可以對大家有一定的幫助，使各位可以學到更多知識，如果覺得文章不錯，請把它分享出去讓更多的人看到。
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