DateTime::__construct

(PHP 5 >= 5.2.0)

DateTime::__construct — Returns new DateTime object

Описание

DateTime::__construct ([ string $time= "now" [, DateTimeZone $timezone= NULL ]] )

Returns new DateTime object.

Список параметров

time: String in a format accepted by strtotime(), defaults to "now".
timezone: Time zone of the time.

Errors/Exceptions

Emits Exception in case of an error.

Примеры

Пример #1 DateTime::__construct() example

<?php

                date_default_timezone_set('Europe/London');

                
 $datetime = new DateTime('2008-08-03 14:52:10');

                echo $datetime->format(DATE_ATOM);
?>

DateTime::add

DateTime::createFromFormat

DateTime

PHP Manual

User Contributed Notes
DateTime::__construct

Tim Strehle
05-May-2010 10:50

"The $timezone parameter and the current timezone are ignored when the $time parameter [�_�] is a UNIX timestamp."

                

                Watch out �_" this means that these two are NOT equivalent, they result in different timezones (unless your current timezone is GMT):

                

                <?php

                $d = new DateTime(); $d->setTimestamp($t);

                echo $o->format('O');
 // +0200

                
 $d = new DateTime('@' . $t);

                echo $o->format('O');
 // +0000
 ?>

kendsnyder at gmail dot com
12-Jan-2010 04:37

Also forgot to mention, that MySQL "zeroed" dates do not throw an error but produce a non-sensical date:

                

                <?php

                

                $d = new DateTime("0000-00-00");
 $d->format("Y-m-d"); // "-0001-11-30"

                
 ?>


                Another good reason to write your own class that extends from DateTime.

kendsnyder at gmail dot com
12-Jan-2010 04:24

The theoretical limits of the date range seem to be "-9999-01-01" through "9999-12-31" (PHP 5.2.9 on Windows Vista 64):

                

                <?php

                

                $d = new DateTime("9999-12-31");
 $d->format("Y-m-d"); // "9999-12-31"

                
 $d = new DateTime("0000-12-31");
 $d->format("Y-m-d"); // "0000-12-31"

                
 $d = new DateTime("-9999-12-31");
 $d->format("Y-m-d"); // "-9999-12-31"

                
 ?>


                Dates above 10000 and below -10000 do not throw errors but produce weird results:

                

                <?php

                

                $d = new DateTime("10019-01-01");
 $d->format("Y-m-d"); // "2009-01-01"

                
 $d = new DateTime("10009-01-01");
 $d->format("Y-m-d"); // "2009-01-01"

                
 $d = new DateTime("-10019-01-01");
 $d->format("Y-m-d"); // "2009-01-01"

                
 ?>