(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL intl >= 3.0.0)
IntlDateFormatter::setTimeZone -- datefmt_set_timezone — Sets formatterʼs timezone
面向对象风格
过程化风格
$formatter, IntlTimeZone|DateTimeZone|string|null $timezone): ?boolSets the timezone used for the IntlDateFormatter. object.
formatterThe formatter resource.
timezoneThe timezone to use for this formatter. This can be specified in the following forms:
null, in which case the default timezone will be used, as specified in
the ini setting date.timezone or
through the function date_default_timezone_set() and as
returned by date_default_timezone_get().
An IntlTimeZone, which will be used directly.
A DateTimeZone. Its identifier will be extracted and an ICU timezone object will be created; the timezone will be backed by ICUʼs database, not PHPʼs.
A string, which should be a valid ICU timezone identifier.
See IntlTimeZone::createTimeZoneIDEnumeration(). Raw
offsets such as "GMT+08:30" are also accepted.
Returns null on success and false on failure.
示例 #1 IntlDateFormatter::setTimeZone() examples
<?php
ini_set('date.timezone', 'Europe/Amsterdam');
$formatter = IntlDateFormatter::create(NULL, NULL, NULL, "UTC");
$formatter->setTimeZone(NULL);
echo "NULL\n ", $formatter->getTimeZone()->getId(), "\n";
$formatter->setTimeZone(IntlTimeZone::createTimeZone('Europe/Lisbon'));
echo "IntlTimeZone\n ", $formatter->getTimeZone()->getId(), "\n";
$formatter->setTimeZone(new DateTimeZone('Europe/Paris'));
echo "DateTimeZone\n ", $formatter->getTimeZone()->getId(), "\n";
$formatter->setTimeZone('Europe/Rome');
echo "String\n ", $formatter->getTimeZone()->getId(), "\n";
$formatter->setTimeZone('GMT+00:30');
print_r($formatter->getTimeZone());以上示例会输出：
NULL
Europe/Amsterdam
IntlTimeZone
Europe/Lisbon
DateTimeZone
Europe/Paris
String
Europe/Rome
IntlTimeZone Object
(
[valid] => 1
[id] => GMT+00:30
[rawOffset] => 1800000
[currentOffset] => 1800000
)