AlgoliaSearch\Index::searchDisjunctiveFaceting PHP Method

    public function searchDisjunctiveFaceting($query, $disjunctive_facets, $params = array(), $refinements = array())
    {
        if (gettype($disjunctive_facets) != 'string' && gettype($disjunctive_facets) != 'array') {
            throw new AlgoliaException('Argument "disjunctive_facets" must be a String or an Array');
        }
        if (gettype($refinements) != 'array') {
            throw new AlgoliaException('Argument "refinements" must be a Hash of Arrays');
        }
        if (gettype($disjunctive_facets) == 'string') {
            $disjunctive_facets = explode(',', $disjunctive_facets);
        }
        $disjunctive_refinements = array();
        foreach ($refinements as $key => $value) {
            if (in_array($key, $disjunctive_facets)) {
                $disjunctive_refinements[$key] = $value;
            }
        }
        $queries = array();
        $filters = array();
        foreach ($refinements as $key => $value) {
            $r = array_map(function ($val) use($key) {
                return $key . ':' . $val;
            }, $value);
            if (in_array($key, $disjunctive_refinements)) {
                $filter = array_merge($filters, $r);
            } else {
                array_push($filters, $r);
            }
        }
        $params['indexName'] = $this->indexName;
        $params['query'] = $query;
        $params['facetFilters'] = $filters;
        array_push($queries, $params);
        foreach ($disjunctive_facets as $disjunctive_facet) {
            $filters = array();
            foreach ($refinements as $key => $value) {
                if ($key != $disjunctive_facet) {
                    $r = array_map(function ($val) use($key) {
                        return $key . ':' . $val;
                    }, $value);
                    if (in_array($key, $disjunctive_refinements)) {
                        $filter = array_merge($filters, $r);
                    } else {
                        array_push($filters, $r);
                    }
                }
            }
            $params['indexName'] = $this->indexName;
            $params['query'] = $query;
            $params['facetFilters'] = $filters;
            $params['page'] = 0;
            $params['hitsPerPage'] = 0;
            $params['attributesToRetrieve'] = array();
            $params['attributesToHighlight'] = array();
            $params['attributesToSnippet'] = array();
            $params['facets'] = $disjunctive_facet;
            $params['analytics'] = false;
            array_push($queries, $params);
        }
        $answers = $this->client->multipleQueries($queries);
        $aggregated_answer = $answers['results'][0];
        $aggregated_answer['disjunctiveFacets'] = array();
        for ($i = 1; $i < count($answers['results']); $i++) {
            foreach ($answers['results'][$i]['facets'] as $key => $facet) {
                $aggregated_answer['disjunctiveFacets'][$key] = $facet;
                if (!in_array($key, $disjunctive_refinements)) {
                    continue;
                }
                foreach ($disjunctive_refinements[$key] as $r) {
                    if (is_null($aggregated_answer['disjunctiveFacets'][$key][$r])) {
                        $aggregated_answer['disjunctiveFacets'][$key][$r] = 0;
                    }
                }
            }
        }
        return $aggregated_answer;
    }