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singleton.php
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singleton.php
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<?php
class Singleton
{
/**
* @var Singleton The reference to *Singleton* instance of this class
*/
private static $instance;
/**
* Returns the *Singleton* instance of this class.
*
* @return Singleton The *Singleton* instance.
*/
public static function getInstance()
{
if (null === static::$instance) {
static::$instance = self::phat();
}
return static::$instance;
}
/**
* Protected constructor to prevent creating a new instance of the
* *Singleton* via the `new` operator from outside of this class.
*/
protected function __construct()
{
}
protected function phat()
{
$arrResInfo['name'] = "[1122]";
$arrResInfo['password'] = "[3344]";
return $arrResInfo;
}
/**
* Private clone method to prevent cloning of the instance of the
* *Singleton* instance.
*
* @return void
*/
private function __clone()
{
}
/**
* Private unserialize method to prevent unserializing of the *Singleton*
* instance.
*
* @return void
*/
private function __wakeup()
{
}
}
class SingletonChild extends Singleton
{
}