DateTimeZone::__construct
timezone_open
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
DateTimeZone::__construct -- timezone_open — Creates new DateTimeZone object
Descrizione
Stile orientato agli oggetti
Stile procedurale
Creates a new DateTimeZone object.
A DateTimeZone object provides access to three different types of timezone
rules: UTC offset (type 1), timezone abbreviation (type
2), and timezone
identifiers as published in the IANA timezone database
(type 3).
The DateTimeZone object can be attached to DateTime and DateTimeImmutable objects to be able to render the timezone encapsulated by these objects in a local timezone.
Elenco dei parametri
-
timezone -
One of the supported timezone names, an offset value (+0200), or a timezone abbreviation (BST).
Valori restituiti
Returns DateTimeZone on success.
Stile procedurale restituisce false in caso di fallimento.
Errori/Eccezioni
This method throws DateInvalidTimeZoneException if the timezone supplied is not recognised as a valid timezone. Prior to PHP 8.3, this was an Exception instead.
Log delle modifiche
| Versione | Descrizione |
|---|---|
| 8.3.0 | Invalid values now return a DateInvalidTimeZoneException instead of a generic Exception. |
Esempi
Example #1 Creating and attaching DateTimeZone to a DateTimeImmutable
<?php
$d = new DateTimeImmutable("2022-06-02 15:44:48 UTC");
$timezones = [ 'Europe/London', 'GMT+04:45', '-06:00', 'CEST' ];
foreach ($timezones as $tz) {
$tzo = new DateTimeZone($tz);
$local = $d->setTimezone($tzo);
echo $local->format(DateTimeInterface::RFC2822 . ' — e'), "\n";
}
?>Il precedente esempio visualizzerà:
Thu, 02 Jun 2022 16:44:48 +0100 — Europe/London
Thu, 02 Jun 2022 20:29:48 +0445 — +04:45
Thu, 02 Jun 2022 09:44:48 -0600 — -06:00
Thu, 02 Jun 2022 17:44:48 +0200 — CEST
Example #2 Catching errors when instantiating DateTimeZone
<?php
// Error handling by catching exceptions
$timezones = array('Europe/London', 'Mars/Phobos', 'Jupiter/Europa');
foreach ($timezones as $tz) {
try {
$mars = new DateTimeZone($tz);
} catch(Exception $e) {
echo $e->getMessage() . '<br />';
}
}
?>Il precedente esempio visualizzerà:
DateTimeZone::__construct() [datetimezone.--construct]: Unknown or bad timezone (Mars/Phobos) DateTimeZone::__construct() [datetimezone.--construct]: Unknown or bad timezone (Jupiter/Europa)
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