Timezozne Constraint

Syntax

// src/Entity/UserSettings.php
namespace App\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class UserSettings
{
/**
* @Assert\Timezone
*/
protected $timezone;
}

// Consider valid only the timezones from countries in America continent

/** @Assert\Timezone(zone=\DateTimeZone::AMERICA) */
protected $timezone;

// Consider valid only the Chinese timezones

/** @Assert\Timezone(zone=\DateTimeZone::PER_COUNTRY, countryCode=“CN”) */
protected $timezone;