class Search extends Solr
{
    protected $searchEngine;
    function __construct()
    {
        $this->searchEngine = $this->connect();
    }
    public function checkAlive()
    {
        $searchEngine = $this->searchEngine;
        if($searchEngine->ping())
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}