PHP Manual: ldap_count

function ldap_count_references(LDAP\Connection $ldap, LDAP\Result $result): int

Counts the number of references in a search result.

ldap: An LDAP\Connection instance, returned by ldap_connect().
result: An LDAP\Result instance, returned by ldap_list() or ldap_search().

Returns the number of references in a search result.

Version	Description
8.1.0	The `ldap` parameter expects an LDAP\Connection instance now; previously, a valid `ldap link` resource was expected.
8.1.0	The `result` parameter expects an LDAP\Result instance now; previously, a valid `ldap result` resource was expected.

ldap_count_references