it says the default parameter is 'now'.
but it also uses 'now' when you enter an empty string like '' despite it being a valid datetime format, expected an exception.
DateTime::__construct
date_create
(PHP 5 >= 5.2.0, PHP 7)
DateTime::__construct -- date_create — Returns new DateTime object
설명
객체 기반 형식
절차식 형식
Returns new DateTime object.
인수
-
time -
날짜/시간 문자열. 유효한 형식은 날짜와 시간 형식에서 설명하고 있습니다.
Enter
NULLhere to obtain the current time when using the$timezoneparameter. -
timezone -
A DateTimeZone object representing the timezone of
$time.If
$timezoneis omitted, the current timezone will be used.Note:
The
$timezoneparameter and the current timezone are ignored when the$timeparameter either is a UNIX timestamp (e.g. @946684800) or specifies a timezone (e.g. 2010-01-28T15:00:00+02:00).
반환값
Returns a new DateTime instance.
절차식 형식은 실패시 FALSE를 반환합니다.
오류/예외
Emits Exception in case of an error.
변경점
| 버전 | 설명 |
|---|---|
| 5.3.0 |
If time contains an invalid
date/time format, then an
exception is now thrown. Previously an error was emitted.
|
예제
Example #1 DateTime::__construct() example
객체 기반 형식
<?php
try {
$date = new DateTime('2000-01-01');
} catch (Exception $e) {
echo $e->getMessage();
exit(1);
}
echo $date->format('Y-m-d');
?>
절차식 형식
<?php
$date = date_create('2000-01-01');
if (!$date) {
$e = date_get_last_errors();
foreach ($e['errors'] as $error) {
echo "$error\n";
}
exit(1);
}
echo date_format($date, 'Y-m-d');
?>
위 예제들의 출력:
2000-01-01
Example #2 Intricacies of DateTime::__construct()
<?php
// Specified date/time in your computer's time zone.
$date = new DateTime('2000-01-01');
echo $date->format('Y-m-d H:i:sP') . "\n";
// Specified date/time in the specified time zone.
$date = new DateTime('2000-01-01', new DateTimeZone('Pacific/Nauru'));
echo $date->format('Y-m-d H:i:sP') . "\n";
// Current date/time in your computer's time zone.
$date = new DateTime();
echo $date->format('Y-m-d H:i:sP') . "\n";
// Current date/time in the specified time zone.
$date = new DateTime(null, new DateTimeZone('Pacific/Nauru'));
echo $date->format('Y-m-d H:i:sP') . "\n";
// Using a UNIX timestamp. Notice the result is in the UTC time zone.
$date = new DateTime('@946684800');
echo $date->format('Y-m-d H:i:sP') . "\n";
// Non-existent values roll over.
$date = new DateTime('2000-02-30');
echo $date->format('Y-m-d H:i:sP') . "\n";
?>
위 예제의 출력 예시:
2000-01-01 00:00:00-05:00 2000-01-01 00:00:00+12:00 2010-04-24 10:24:16-04:00 2010-04-25 02:24:16+12:00 2000-01-01 00:00:00+00:00 2000-03-01 00:00:00-05:00
참고
- DateTime::createFromFormat() - Parses a time string according to a specified format
- DateTimeZone::__construct() - Creates new DateTimeZone object
- Date and Time Formats
- date.timezone ini setting
- date_default_timezone_set() - Sets the default timezone used by all date/time functions in a script
- DateTime::getLastErrors() - Returns the warnings and errors
- checkdate() - 그레고리력 날짜를 확인합니다
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