PHP 中运用 elasticsearch

PHP扩展安装

1. 环境要求：PHP_VERSION >= 5.3.9，composer工具


2. 在E盘新建文件夹命名为elastic,，拷贝composer.phar到
     E:/elastic目录下面


3. 打开命令行窗口，进入E:/elastic


4. 在命令行运行：
      php composer.phar require elasticsearch/elasticsearch


5. 此时E:/elastic目录下会出现一个vendor目录，安装成功


6. 使用方法：
       require 'vendor/autoload.php'; 
      $client = new ElasticsearchClient();

 

创建索引

 

include('./vendor/autoload.php');
$elastic = new ElasticsearchClient();
$index[‘index’] = ‘log’;  //索引名称
$index[‘type’] = ‘ems_run_log’; //类型名称
$data[‘body’][‘settings’][‘number_of_shards’] = 5;  //主分片数量
$data[‘body’][‘settings’][‘number_of_replicas’] = 0; //从分片数量
$elastic->indices()->create($index);

插入索引数据

include('./vendor/autoload.php');
  $elastic = new ElasticsearchClient();
  $index[‘index’] = ‘log’; //索引名称
  $index[‘type’] = ‘ems_run_log’; //类型名称
  $index[‘id’] = 1   //不指定id，系统会自动生成唯一id
  $index[‘body’] = array(
      ‘mac’ => 'fcd5d900beca',
      ‘customer_id’ => 3,
      ‘product_id’ => 5,
      ‘version’ => 2
  );
  $elastic->index($index);

查询

include('./vendor/autoload.php');
   $elastic = new ElasticsearchClient();
   $index[‘index’] = ‘log’; //索引名称
   $index[‘type’] = ‘ems_run_log’; //类型名称
   $index[‘body’][‘query’][‘match’][‘mac’] = ‘fcd5d900beca’;
   $index[‘size’] = 10;
   $index[‘from’] = 200;
   $elastic->search($index);


  相当于sql语句：
   select*from ems_run_log where mac=‘fcd5d900beca’
   limit 200,10;<strong>
</strong>

include('./vendor/autoload.php');
  $elastic = new ElasticsearchClient();
  $index[‘index’] = ‘log’; //索引名称
  $index[‘type’] = ‘ems_run_log’; //类型名称
  $index[‘body’][‘query’][‘bool’][‘must’] = array(
        array(‘match’ => array(‘mac’ => ‘fcd5d900beca’)),
        array(‘match’ => array(‘product_id’ => 20))
       );
  $index[‘size’] = 10;
  $index[‘from’] = 200;
  $elastic->search($index);


 相当于sql语句：
  select*from ems_run_log where mac=‘fcd5d900beca’
  and product_id = 20 limit 200,10;

include('./vendor/autoload.php');
$elastic = new ElasticsearchClient();
$index[‘index’] = ‘log’; //索引名称
$index[‘type’] = ‘ems_run_log’; //类型名称
$index[‘body’][‘query’][‘bool’][‘should’] = array(
      array(‘match’ => array(‘mac’ => ‘fcd5d900beca’)),
      array(‘match’ => array(‘product_id’ => 20))
     );
$index[‘size’] = 10;
$index[‘from’] = 200;
$elastic->search($index);


当于sql语句：
select*from ems_run_log where mac=‘fcd5d900beca’
or product_id = 20 limit 200,10;

include('./vendor/autoload.php');
 $elastic = new ElasticsearchClient();
 $index[‘index’] = ‘log’; //索引名称
 $index[‘type’] = ‘ems_run_log’; //类型名称
 $index[‘body’][‘query’][‘bool’][‘must_not’] = array(
       array(‘match’ => array(‘mac’ => ‘fcd5d900beca’)),
       array(‘match’ => array(‘product_id’ => 20))
      );
 $index[‘size’] = 10;
 $index[‘from’] = 200;
 $elastic->search($index);


相当于sql语句：
 select*from ems_run_log where mac!=‘fcd5d900beca’
 and product_id != 20 limit 200,10;

include('./vendor/autoload.php');
   $elastic = new ElasticsearchClient();
   $index[‘index’] = ‘log’; //索引名称
   $index[‘type’] = ‘ems_run_log’; //类型名称
   $index[‘body’][‘query’][‘range’] = array(
       ‘id’ => array(‘gte’ => 20,’lt’ => 30);
     );
   $index[‘size’] = 10;
   $index[‘from’] = 200;
   $elastic->search($index);


  相当于sql语句：
   select*from ems_run_log where id>=20
   and id<30  limit 200,10;

删除文档

<pre name="code" class="php">include('./vendor/autoload.php');
$elastic = new ElasticsearchClient();
$index['index'] = 'test';  //索引名称
$index['type'] = 'ems_test'; //类型名称
$index['id'] = 2;
$elastic->delete($index);

IT成长中的那些事儿