IntlDateFormatter::create()
datefmt_create
IntlDateFormatter::__construct
(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
Create a date formatter
说明
面向对象风格public static IntlDateFormatter::create(string $locale,int $datetype,int $timetype[,mixed $timezone= NULL[,mixed $calendar= NULL[,string $pattern= ""]]]): IntlDateFormatter
面向对象风格(constructor)
过程化风格
datefmt_create(string $locale,int $datetype,int $timetype[,mixed $timezone= NULL[,mixed $calendar= NULL[,string $pattern= ""]]]): IntlDateFormatter
Create a date formatter.
参数
- $locale
Locale to use when formatting or parsing or
NULL
to use the value specified in the ini setting intl.default_locale.- $datetype
Date type to use(
none
,short
,medium
,long
,full
). This is one of the IntlDateFormatter constants. It can also beNULL
, in which case ICUʼs default date type will be used.- $timetype
Time type to use(
none
,short
,medium
,long
,full
). This is one of the IntlDateFormatter constants. It can also beNULL
, in which case ICUʼs default time type will be used.- $timezone
Time zone ID. The default(and the one used if
NULL
is given)is the one returned by date_default_timezone_get() or, if applicable, that of the IntlCalendar object passed for the$calendarparameter. This ID must be a valid identifier on ICUʼs database or an ID representing an explicit offset, such asGMT-05:30.This can also be an IntlTimeZone or a DateTimeZone object.
- $calendar
Calendar to use for formatting or parsing. The default value is
NULL
, which corresponds toIntlDateFormatter::GREGORIAN
. This can either be one of the IntlDateFormatter calendar constants or an IntlCalendar. Any IntlCalendar object passed will be clone; it will not be changed by the IntlDateFormatter. This will determine the calendar type used(gregorian, islamic, persian, etc.)and, ifNULL
is given for the$timezoneparameter, also the timezone used.- $pattern
Optional pattern to use when formatting or parsing. Possible patterns are documented at » http://userguide.icu-project.org/formatparse/datetime.
返回值
The created IntlDateFormatter or FALSE
in case of failure.
更新日志
版本 | 说明 |
---|---|
5.5.0/PECL 3.0.0 | An IntlCalendar object is allowed for$calendar. Objects of type IntlTimeZone and DateTimeZone are allowed for$timezone. Invalid timezone identifiers(including empty strings)are no longer allowed for$timezone. If |
范例
datefmt_create() example
<?php $fmt = datefmt_create( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles', IntlDateFormatter::GREGORIAN ); echo "First Formatted output is ".datefmt_format( $fmt , 0); $fmt = datefmt_create( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ); echo "Second Formatted output is ".datefmt_format( $fmt , 0); $fmt = datefmt_create( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ,"MM/dd/yyyy"); echo "First Formatted output with pattern is ".datefmt_format( $fmt , 0); $fmt = datefmt_create( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ,"MM/dd/yyyy"); echo "Second Formatted output with pattern is ".datefmt_format( $fmt , 0); ?>
OO example
<?php $fmt = new IntlDateFormatter( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ); echo "First Formatted output is ".$fmt->format(0); $fmt = new IntlDateFormatter( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ); echo "Second Formatted output is ".$fmt->format(0); $fmt = new IntlDateFormatter( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN ,"MM/dd/yyyy"); echo "First Formatted output with pattern is ".$fmt->format(0); $fmt = new IntlDateFormatter( "de-DE" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'America/Los_Angeles',IntlDateFormatter::GREGORIAN , "MM/dd/yyyy"); echo "Second Formatted output with pattern is ".$fmt->format(0); ?>
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
参见
- datefmt_format() Format the date/time value as a string
- datefmt_parse() Parse string to a timestamp value
- datefmt_get_error_code() Get the error code from last operation
- datefmt_get_error_message() Get the error text from the last operation
It should be noted that the locale string passed into IntlDateFormatter's constructor supports UCA keywords. So you can, for example, do things like this to output the year as a Japanese era year: <?php $now = new DateTime(); //DateTime is a core PHP class as of version 5.2.0 $formatter = new IntlDateFormatter('ja_JP', IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'Asia/Tokyo', IntlDateFormatter::GREGORIAN); echo 'It is now: "' . $formatter->format($now) . '" in Tokyo' . "\n"; //above gives [It is now: "2011年8月19日金曜日 23時32分27秒JST" in Tokyo] $formatter = new IntlDateFormatter('ja_JP@calendar=japanese', IntlDateFormatter::FULL, IntlDateFormatter::FULL, 'Asia/Tokyo', IntlDateFormatter::TRADITIONAL); echo 'It is now: "' . $formatter->format($now) . '" in Tokyo' . "\n"; //above gives [It is now: "平成23年8月19日金曜日 23時32分27秒JST" in Tokyo] ?>
The documentation says that $datetype and $timetype can also be NULL, in which case ICUʼs default date type or time type will be used. But when declare (strict_types=1); is also set, Intl fails to create the IntlDateFormatter class, and it returns an error "datefmt_create: unable to parse input parameters".
Documentation says "timezone: Time zone ID, default is system default." The "system default" really means only the "TZ" environment variable on Unix/Linux systems. It does not mean PHP ini setting or value set via date_default_timezone_set() or the OS default time zone in file "/etc/timezone".