Checks if Solr server is still up

# SolrClient::ping

(PECL solr >= 0.9.2)

SolrClient::ping — Checks if Solr server is still up

### 説明

public SolrClient::ping ( void ) : SolrPingResponse

Checks if the Solr server is still alive. Sends a HEAD request to the Apache Solr server.

### パラメータ

この関数にはパラメータはありません。

### 返り値

Returns a SolrPingResponse object on success and throws an exception on failure.

### エラー / 例外

Throws SolrClientException if the client had failed, or there was a connection issue.

Throws SolrServerException if the Solr Server had failed to satisfy the request.

### 例

例1 SolrClient::ping() example

`<?php
$options = array
(
'hostname' => SOLR_SERVER_HOSTNAME,
'login' => SOLR_SERVER_USERNAME,
'password' => SOLR_SERVER_PASSWORD,
'port' => SOLR_SERVER_PORT,
);
$client = new SolrClient($options);
$pingresponse = $client->ping();
?>`

上の例の出力は、 たとえば以下のようになります。