Question

I have a class with the following structure:

class Something 
{

 private static $_instance = null;

 final public function __construct()
 {
   //(...)
   try 
   {
     //(...)
   }
   catch(Exception $e) 
   {
     //(...)
   }
 }
 public static function getInstance() 
 {
   if (self::$_instance === null) 
   {
    self::$_instance = new self;
   }

   return self::$_instance;
 }
 private function __clone()
 {
   //empty
 }

} //end of class

Is it correct and precise to say that, on this class, we have applied a Singleton Design Pattern?

Thanks a lot in advance.

Answer 1

No. For Singelton, it’s required that constructor is declared private and class has ‘getter’ method, most common getInstance(), that you’ve already implemented.