Create a Solarium_Client instance in three different ways

configuration.php

<?php

$config = array(
    'host' => '192.168.1.2',
    'port' => 8983,
    'path' => '/solr/',
    'core' => 'geonames',
);

$client = new Solarium_Client($config);

extending.php

<?php

class My_Solr_Client extends Solarium_Client
{

    protected function _init()
    {
        $this->setHost('192.168.1.2');
        $this->setPort(8983);
        $this->setPath('/solr/');
        $this->setCore('geonames');
    }

}

$client = new My_Solr_Client;

programmatically.php

<?php

$client = new Solarium_Client;
$client->setHost('192.168.1.2');
$client->setPort(8983);
$client->setPath('/solr/');
$client->setCore('geonames');