Checks if Solr server is still up

# SolrClient::ping

(PECL solr >= 0.9.2)

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

### 说明

public function SolrClient::ping(): SolrPingResponse

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

### 参数

此函数没有参数。

### 返回值

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

### 错误／异常

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.

### 示例

示例 #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();

    ?>

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