Specifies a filter query

# SolrQuery::addFilterQuery

(PECL solr >= 0.9.2)

SolrQuery::addFilterQuery — Specifies a filter query

### 説明

public SolrQuery::addFilterQuery ( string `$fq` ) : SolrQuery

Specifies a filter query

### パラメータ

`fq`

  The filter query

### 返り値

Returns the current SolrQuery object.

### 例

例1 SolrQuery::addFilterQuery() example

`<?php
$options = array
(
'hostname' => SOLR_SERVER_HOSTNAME,
'login' => SOLR_SERVER_USERNAME,
'password' => SOLR_SERVER_PASSWORD,
'port' => SOLR_SERVER_PORT,
);
$client = new SolrClient($options);
$query = new SolrQuery();
$query->setQuery('*:*');
$query->addFilterQuery('color:blue,green');
$query_response = $client->query($query);
$response = $query_response->getResponse();
print_r($response['facet_counts']['facet_fields']);
?>`

上の例の出力は、 たとえば以下のようになります。

     &fq=color:blue,green