Returns the current state of the facet.missing parameter

# SolrQuery::getFacetMissing

(PECL solr >= 0.9.2)

SolrQuery::getFacetMissing — Returns the current state of the facet.missing parameter

### 説明

public SolrQuery::getFacetMissing ([ string `$field_override` ] ) : bool

Returns the current state of the facet.missing parameter. This accepts an optional field override

### パラメータ

`field_override`

  The name of the field

### 返り値

Returns a boolean on success and `NULL` if not set