(PECL solr >= 0.9.2)
SolrInputDocument::sort — Sorts the fields within the document
The fields are rearranged according to the specified criteria and sort direction Fields can be sorted by boost values, field names and number of values. The $order_by parameter must be one of : * SolrInputDocument::SORT_FIELD_NAME * SolrInputDocument::SORT_FIELD_BOOST_VALUE * SolrInputDocument::SORT_FIELD_VALUE_COUNT The sort direction can be one of : * SolrInputDocument::SORT_DEFAULT * SolrInputDocument::SORT_ASC * SolrInputDocument::SORT_DESC
The sort criteria
The sort direction
成功した場合に TRUE を、失敗した場合に FALSE を返します。