Description:
------------
---
From manual page: http://www.php.net/solrclient.ping#refsect1-solrclient.ping-returnvalues
---

The SolrClient::Ping function will throw a E_ERROR if the client can't connect to the Solr Server. If this error is handled, the function will throw the SolrClientException as documented.

May also refer to: https://bugs.php.net/bug.php?id=59511

Test script:
---------------
$options = array(
...
);

$solr = new SolrClient($options);
$solr->ping(); //Will throw E_ERROR

set_error_handler(...);
$solr->ping(); //Will throw SolrClientException



Expected result:
----------------
I believe the ping function shouldn't throw a E_ERROR, as it complicates code where an application is not dependant on Solr.