php7 polyfill:
<?php
// keep timezone and microseconds precision
function polyfillDateTimeCreateFromInterface(DateTimeInterface $dti): DateTime {
$tz = $dti->getTimezone();
return new DateTime($dti->format('Y-m-d H:i:s.u'), $tz ? $tz : null);
}
?>
Testing:
<?php
var_dump(
($a = new DateTimeImmutable()),
($b = polyfillDateTimeCreateFromInterface($a)),
$a == $b
);
?>
DateTime::createFromInterface
(PHP 8)
DateTime::createFromInterface — Retourne un nouvel objet DateTime encapsulant l'objet DateTimeInterface fourni
Description
Liste de paramètres
-
object -
L'objet DateTimeInterface qui doit être converti en une version mutable. Cet objet n'est pas modifié, mais une nouvelle instance d'objet DateTime est créé contenant les même informations de date, temps, et fuseau horaire.
Valeurs de retour
Retourne une nouvelle instance de DateTime.
Exemples
Exemple #1 Création d'un objet de date et temps mutable
<?php
$date = new DateTimeImmutable("2014-06-20 11:45 Europe/London");
$mutable = DateTime::createFromInterface($date);
$date = new DateTime("2014-06-20 11:45 Europe/London");
$also_mutable = DateTime::createFromInterface($date);
?>
add a note
User Contributed Notes 2 notes
gabrielpl at gmail dot com ¶
3 years ago
divinity76 at gmail dot com ¶
3 years ago
php7 polyfill:
<?php
// php7 polyfill for php8' DateTime::createFromInterface
function PolyfillDateTimeCreateFromInterface(DateTimeInterface $dti):DateTime{
$tz = $dti->getTimezone();
$ret = DateTime::createFromFormat(DateTimeInterface::RFC3339, $dti->format(DateTimeInterface::RFC3339));
if(!!$tz){
// without this: timezone +01:00
// with this: timezone Europe/Oslo
$ret = $ret->setTimezone($tz);
}
return $ret;
}
?>
testing it:
<?php
$dt = new DateTimeImmutable("1970-01-01",timezone_open("Europe/Oslo"));
$dti = PolyfillDateTimeCreateFromInterface($dt);
var_dump($dti->format(DateTime::RFC3339), $dti->getTimezone());
die();
?>
gives:
string(25) "1970-01-01T00:00:00+01:00"
object(DateTimeZone)#2 (2) {
["timezone_type"]=>
int(3)
["timezone"]=>
string(11) "Europe/Oslo"
}
- and warning: using the TimeZone argument of the DateTime constructor is a trap, in the example above if i used the constructor argument instead of setTimezone(), it would become "timezone_type=>1 timezone=>+01:00" instead of "timezone=>europe/oslo", the actual timezone name would be lost.
