如何使用Elastic Search php获取Elastic Search中的文档数量

Question

I'm using the Elastic Search php client (this one). I'm trying to get the total number of documents in a type, but can't figure out how to do it. Any help would be greatly appreciated.

Here's what I've tried:

$params['index'] = $index_name;
$params['type'] = 'applicant';
$applicants_count = Es::count($params)["count"];

But that always seems to return 0.

Answer 1

Found the answer. This happened because I was trying to get the result in my test, which called count to soon after the document was indexed. I added the refresh command in between (Es::indices()->refresh(array("index" => $params["index"]));) and that solved the problem:

$params['index'] = $index_name;
$params['type'] = 'applicant';
Es::indices()->refresh(array("index" => $params["index"]));
$applicants_count = Es::count($params)["count"];