(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlTimeZone::countEquivalentIDs -- intltz_count_equivalent_ids — Get the number of IDs in the equivalency group that includes the given ID
Object oriented style (method):
public static IntlTimeZone::countEquivalentIDs ( string $zoneId ) : int
Procedural style:
intltz_count_equivalent_ids ( string $zoneId ) : int
This function is currently not documented; only its argument list is available.
zoneId
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https://www.php.net/manual/en/intltimezone.countequivalentids.php