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(PHP 5 >= 5.2.0, PHP 7, PHP 8)
DateTimeInterface::getOffset -- DateTimeImmutable::getOffset -- DateTime::getOffset -- date_offset_get — Returns the timezone offset
面向对象风格
过程化风格
Returns the timezone offset.
object
仅为过程化风格：由 date_create() 返回的 DateTime 类型的对象。
Returns the timezone offset in seconds from UTC on success.
| 版本 | 说明 |
|---|---|
| 8.0.0 |
Prior to this version, false was returned on failure.
|
示例 #1 DateTime::getOffset() example
面向对象风格
<?php
$winter = new DateTimeImmutable('2010-12-21', new DateTimeZone('America/New_York'));
$summer = new DateTimeImmutable('2008-06-21', new DateTimeZone('America/New_York'));
echo $winter->getOffset() . "\n";
echo $summer->getOffset() . "\n";
?>
过程化风格
<?php
$winter = date_create('2010-12-21', timezone_open('America/New_York'));
$summer = date_create('2008-06-21', timezone_open('America/New_York'));
echo date_offset_get($winter) . "\n";
echo date_offset_get($summer) . "\n";
?>
以上例程会输出：
-18000 -14400
Note: -18000 = -5 hours, -14400 = -4 hours.
