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<?php
namespace Mediadevs\Validator\Helpers;
use Exception;
class Singleton
{
/**
* Singleton instances will be stored in this register.
*
* @var array
*/
private static $instances = array();
* Singleton's constructor should not be public. However, it can't be
* private either if we want to allow subclassing.
protected function __construct()
// Unreachable.
}
* Cloning and unserialization are not permitted for singletons.
protected function __clone()
* @throws Exception
* @return void
public function __wakeup(): void
throw new Exception('Cannot unserialize singleton');
* The method you use to get the Singleton's instance.
public static function getInstance(): self
$subclass = static::class;
if (!isset(self::$instances[$subclass])) {
self::$instances[$subclass] = new static();
return self::$instances[$subclass];
Mediadevs /
Validator
