PHP new self vs. new static

Self refers to the same class whose method, the new operation takes place in.

Static in PHP 5.3 's late static bindings refers to whatever class in the hierarchy which the method on.

In the following example, B inherits both methods from A. Self is bound to a because it's defined in a ' s implementation of The first method, whereas static is bound to the called Class (also see Get_called_class ()).

Class A {public  static function get_self () {    return to new self ();  }   public static function Get_static () {    return new static ()  }} class B extends A {} echo Get_class (B::get_self ()); Aecho Get_class (B::get_static ()); Becho Get_class (A::get_static ()); A

　　

PHP new self vs. new static