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<?php $allowed_zones = timezone_identifiers_list(); var_dump(count($allowed_zones)); $allowed_zones = timezone_identifiers_list(DateTimeZone::ALL, DateTimeZone::ALL_WITH_BC); var_dump(count($allowed_zones)); $allowed_zones = timezone_identifiers_list(DateTimeZone::ALL_WITH_BC); var_dump(count($allowed_zones));

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