(PECL solr >= 0.9.2)
SolrQuery::getFacetLimit — Returns the maximum number of constraint counts that should be returned for the facet fields
public SolrQuery::getFacetLimit ([ string $field_override ] ) : int
Returns the maximum number of constraint counts that should be returned for the facet fields. This method accepts an optional field override
field_override
The name of the field to override for
Returns an integer on success and null if not set
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https://www.php.net/manual/en/solrquery.getfacetlimit.php