The manual says "Returns DateTime object on success or FALSE on failure".
I tried hard to provoke a failure, but I seem to always get a DateTime object back, even though the PHP log says things like: "Failed to parse time string (2007W992-11:16:47+00:00) at position 5 (9): Unexpected character"
So if you (need to) check the result, beware!
date_create
(PHP 5 >= 5.1.0)
date_create — 新しい DateTime オブジェクトを返す
説明
DateTime date_create ( [string $time [, DateTimeZone $timezone]] )DateTime DateTime::__construct ( [string $time [, DateTimeZone $timezone]] )
パラメータ
- time
strtotime() が理解する形式の文字列。デフォルトは "now" です。
- timezone
その時間のタイムゾーン。
返り値
成功した場合に DateTime オブジェクト、失敗した場合に FALSE を返します。
date_create
karsten at typo3 dot org
18-Sep-2007 01:03
18-Sep-2007 01:03
Dok
05-Jul-2007 11:52
05-Jul-2007 11:52
If you want to create the DateTime object directly from a timestamp use this
<?
$st = 1170288000 // a timestamp
$dt = new DateTime("@$st");
?>
See also: http://bugs.php.net/bug.php?id=40171
artur at jedlinski dot pl
19-Apr-2007 09:47
19-Apr-2007 09:47
"String in a format accepted by strtotime()" is not 100% truth - you cannot pass timezone info in the string used as DateTime constructor, while you can do it with strtotime(). It may be a problem if you would like to create a date from GMT time and then display it in your local timezone, for example:
<?php
$timeZone = 'Europe/Warsaw'; // +2 hours
date_default_timezone_set($timeZone);
$dateSrc = '2007-04-19 12:50 GMT';
$dateTime = new DateTime($dateSrc);
echo 'date(): '.date('H:i:s', strtotime($dateSrc));
// correct! date(): 14:50:00
echo 'DateTime::format(): '.$dateTime->format('H:i:s');
// INCORRECT! DateTime::format(): 12:50:00
?>
So if you want to convert date between different timezones, you have to create two DateTimeZone objects - one for the input and one for output, like this:
<?php
$timeZone = 'Europe/Warsaw'; // +2 hours
$dateSrc = '2007-04-19 12:50';
$dateTime = new DateTime($dateSrc, new DateTimeZone('GMT'));
$dateTime->setTimeZone(new DateTimeZone($timeZone));
echo 'DateTime::format(): '.$dateTime->format('H:i:s');
// CORRECT! DateTime::format(): 14:50:00
?>
I'm not sure if this is a bug or desired behaviour.
nizar dot jouini at gmail.com
07-Mar-2007 10:05
07-Mar-2007 10:05
date_create and other DateTime related functions are included by default only in PHP versions equal and greater than 5.2.
In PHP 5.1.2 this functionality is marked to be experimental and has to be enabled at compile time.