DateTimeZone::__construct
timezone_open
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
DateTimeZone::__construct -- timezone_open — Creates new DateTimeZone object
Description
Object-oriented style
$timezone
)Procedural style
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.
Parameters
-
timezone
-
One of the supported timezone names, an offset value (+0200), or a timezone abbreviation (BST).
Return Values
Returns DateTimeZone on success.
Procedural style returns false
on failure.
Errors/Exceptions
This method throws Exception if the timezone supplied is not recognised as a valid timezone.
Examples
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";
}
?>
The above example will output:
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 />';
}
}
?>
The above example will output:
DateTimeZone::__construct() [datetimezone.--construct]: Unknown or bad timezone (Mars/Phobos) DateTimeZone::__construct() [datetimezone.--construct]: Unknown or bad timezone (Jupiter/Europa)