php-単例モード-履歴書demo

class single{

    

    // 

    protected static $ins = null;

    

    public static function getIns(){

        if(self::$ins == null){

             self::$ins = new self();

        }

        return self::$ins;

    }

    //protected  new ; 

    //final  

    final protected function __construct() {

       

    }

    

    /**

     *  clone 

     */

    final protected function __clone() {

        

    }

}