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54 lines (46 loc) · 944 Bytes
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Copy pathSingleton.php
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54 lines (46 loc) · 944 Bytes
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<?php
namespace Cloudinary\Utils;
/**
* Singleton Pattern.
*
* Modern implementation.
*/
class Singleton
{
/**
* Call this method to get singleton
*/
public static function instance()
{
static $instance = false;
if ($instance === false) {
// Late static binding (PHP 5.3+)
$instance = new static();
}
return $instance;
}
/**
* Make constructor private, so nobody can call "new Class".
*/
private function __construct()
{
}
/**
* Make clone magic method private, so nobody can clone instance.
*/
private function __clone()
{
}
/**
* Make sleep magic method private, so nobody can serialize instance.
*/
private function __sleep()
{
}
/**
* Make wakeup magic method private, so nobody can unserialize instance.
*/
private function __wakeup()
{
}
}