private function make(ZoneOffset $offset)
{
return $offset->getRules();
}
/**
* Obtains an instance of {@code ZoneId} wrapping an offset.
* <p>
* If the prefix is "GMT", "UTC", or "UT" a {@code ZoneId}
* with the prefix and the non-zero offset is returned.
* If the prefix is empty {@code ""} the {@code ZoneOffset} is returned.
*
* @param string $prefix the time-zone ID, not null
* @param ZoneOffset $offset the offset, not null
* @return ZoneId the zone ID, not null
* @throws IllegalArgumentException if the prefix is not one of
* "GMT", "UTC", or "UT", or ""
*/
public static function ofOffset($prefix, ZoneOffset $offset)
{
if (!is_string($prefix)) {
throw new \InvalidArgumentException();
}
if (strlen($prefix) === 0) {
return $offset;
}
if ($prefix !== "GMT" && $prefix !== "UTC" && $prefix !== "UT") {
throw new IllegalArgumentException("prefix should be GMT, UTC or UT, is: " . $prefix);
}
if ($offset->getTotalSeconds() !== 0) {
$prefix .= $offset->getId();
}
return new ZoneRegion($prefix, $offset->getRules());
}
