(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)
$zoneId
$countryOrRawOffset
$type
$region
null
$rawOffset
&$isSystemID
$isDaylight
$style
$locale
$index
$timezoneId
$date
$local
&$rawOffset
&$dstOffset
$otherTimeZone
IntlTimeZone::DISPLAY_SHORT
IntlTimeZone::DISPLAY_LONG