PHP - Manual: DateTimeZone

2024-12-21

DateTimeZone::__construct »

« DateTime::__wakeup

The DateTimeZone class

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

简介

Representation of time zone.

类摘要

class DateTimeZone {

/* 常量 */

const int AFRICA = 1;

const int AMERICA = 2;

const int ANTARCTICA = 4;

const int ARCTIC = 8;

const int ASIA = 16;

const int ATLANTIC = 32;

const int AUSTRALIA = 64;

const int EUROPE = 128;

const int INDIAN = 256;

const int PACIFIC = 512;

const int UTC = 1024;

const int ALL = 2047;

const int ALL_WITH_BC = 4095;

const int PER_COUNTRY = 4096;

/* 方法 */

public __construct(string $timezone)

public getLocation(): array

public getName(): string

public getOffset(DateTime $datetime): int

public getTransitions(int $timestampBegin = PHP_INT_MIN, int $timestampEnd = PHP_INT_MAX): array|false

public static listAbbreviations(): array

public static listIdentifiers(int $what = DateTimeZone::ALL, string $country = null): array

}

预定义常量

DateTimeZone::AFRICA: Africa time zones.
DateTimeZone::AMERICA: America time zones.
DateTimeZone::ANTARCTICA: Antarctica time zones.
DateTimeZone::ARCTIC: Arctic time zones.
DateTimeZone::ASIA: Asia time zones.
DateTimeZone::ATLANTIC: Atlantic time zones.
DateTimeZone::AUSTRALIA: Australia time zones.
DateTimeZone::EUROPE: Europe time zones.
DateTimeZone::INDIAN: Indian time zones.
DateTimeZone::PACIFIC: Pacific time zones.
DateTimeZone::UTC: UTC time zones.
DateTimeZone::ALL: All time zones.
DateTimeZone::ALL_WITH_BC: All time zones including backwards compatible.
DateTimeZone::PER_COUNTRY: Time zones per country.

DateTimeZone::__construct — 创建新的DateTimeZone对象
DateTimeZone::getLocation — 返回与时区相关的定位信息。
DateTimeZone::getName — 返回时区名称。
DateTimeZone::getOffset — 返回相对于 GMT 的时差。
DateTimeZone::getTransitions — Returns all transitions for the timezone
DateTimeZone::listAbbreviations — 返回一个包含 dst (夏令时)，时差和时区信息的关联数组。
DateTimeZone::listIdentifiers — 返回一个包含了所有时区标示符的索引数组。

add a note

User Contributed Notes 2 notes

down

bradm at inmotionhosting dot com ¶

4 years ago


Seems like a significant differences between php 5.3 and 5.6:

php -r "new DateTimeZone( '-0400' );"
-------------                        --------------
- PHP 5.3.3 -                        - PHP 5.6.30 -
-------------                        --------------
DateTimeZone::__construct():        Works as expected.
Unknown or bad timezone (-0400)

php -r '$tz = new DateTimeZone( "EDT" ); echo $tz->getName();';
-------------                        --------------
- PHP 5.3.3 -                        - PHP 5.6.30 -
-------------                        --------------
America/New_York                    EDT

php -r '$tz = new DateTimeZone( "EDT" ); echo $tz->getName();';
-------------                        --------------
- PHP 5.3.3 -                        - PHP 5.6.30 -
-------------                        --------------
DateTimeZone Object                DateTimeZone Object
(                                    (
)                                    [timezone_type] => 2
                                    [timezone] => EDT
                                    )

down

-38

ryan at amst dot com ¶

6 years ago


It seems like as of PHP 5.5, creating a new DateTimeZone with a string like 'EDT' will cause DateTimeZone::getName() to return 'EDT' whereas prior to 5.5 it would convert it would have returned 'America/New_York'

This is of particular note when using a DateTimeZone object to change the timezone on a DateTime object.  Using a DateTimeZone object when set as shown above will cause the conversion to be wrong without throwing any errors.

add a note

官方地址：https://www.php.net/manual/en/class.datetimezone.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络数据库 JAVA 面试 NoSQL C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 PHP 8.1 adodb手册 ADORecordSet对象 opcache预加载 Composer的Packagist资源 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet mysql面试题 PHP json解析（json_decode）页面工具 [原创]诡异的php-fpm超时问题纯php实现DES以及TripleDES加密算法两千行PHP学习笔记 PHP5 扩展SOAP 调用 webservice 支持php7的性能采集扩展 adodb连接mysql多个数据库的问题

略微加速

PHP官方手册 - 互联网笔记

The DateTimeZone class

简介

类摘要

预定义常量

目录

User Contributed Notes 2 notes