查询

   $_config = array(
          'host' =>'192.168.1.60',                 // host
          'port' => 39200,
   );
   $client = new Elastica\Client($_config);
   //$client = new Elastica\Client();
   $elastica_query = new Elastica\Query();
   $elastica_search = new Elastica\Search($client);
   $elastica_search->setQuery($elastica_query);
   try {
       $b = $elastica_search->search();
   } catch (Exception $e) {
       var_dump($e->getMessage());
   }
   $res = ($b->getResults());
   foreach ($res as $key => $rs) {
       var_dump($rs->getParam('_source'));
       //var_dump($rs) ;
   }
   echo 'all the end';