PHP Manual: ldap_bind

function ldap_bind_ext(
    LDAP\Connection $ldap,
    ?string $dn = null,
    #[\SensitiveParameter] ?string $password = null,
    ?array $controls = null
): LDAP\Result|false

Does the same thing as ldap_bind() but returns an LDAP\Result instance to be parsed with ldap_parse_result().

Returns an LDAP\Result instance, or false on failure.

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	Returns an LDAP\Result instance now; previously, a resource was returned.
8.0.0	`controls` is nullable now; previously, it defaulted to `[]`.

ldap_bind_ext