IntlDateFormatter::format()

datefmt_format

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

Format the date/time value as a string

说明

Formats the time value as a string.

参数

The date formatter resource.

Value to format. This may be a DateTimeInterface object, an IntlCalendar object, a numeric type representing a(possibly fractional)number of seconds since epoch or an array in the format output by localtime().

If a DateTime or an IntlCalendar object is passed, its timezone is not considered. The object will be formatted using the formaterʼs configured timezone. If one wants to use the timezone of the object to be formatted,IntlDateFormatter::setTimeZone() must be called before with the objectʼs timezone. Alternatively, the static function IntlDateFormatter::formatObject() may be used instead.

返回值

The formatted string or, if an error occurred,FALSE.

更新日志

范例

datefmt_format() example

OO example

以上例程会输出：

First Formatted output is Wednesday, December 31, 1969 4:00:00 PM PT
Second Formatted output is Mittwoch, 31. Dezember 1969 16:00 Uhr GMT-08:00
First Formatted output with pattern is 12/31/1969
Second Formatted output with pattern is 12/31/1969

With IntlCalendar object

Example for PHP Version 5.3.2-1ubuntu4.9 (the prod server):

When using $dateFormatter->format($date->getTimestamp()), you'll always get the formatted and localized string instead of a false.

It's important to note that a conversion of timezones will be made from the default timezone (date_default_timezone_set()) and the timezone you passed in the constructor (or datefmt_create()).
If you are inserting the dates into your database as UTC time, make sure to set date_default_timezone_set to UTC as well (or any other timezone, but they need to be the same). Once you call ::format, you will get the converted time.

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