PHP Static Delay Binding

PHP 5.3.0 adds a static keyword to refer to the current class, that is, to implement a lazy static binding, while PHP 5.3.0 also implements the Get_called_class () function to find the currently called class, and allows the use of variables as class names to invoke static properties or methods

(PHP 5 >= 5.3.0, PHP 7)

get_called_class-Late static binding ("late static binding") class name

Description

String Get_called_class (void)

Gets the class name of the static method call.

return value

Returns the name of the class, or FALSE if not called in the class.

Example

Use of Example #1 Get_called_class ()

<?php

class Foo {static public function test () {Var_dump (Get_called_class ()); } }

Class Bar extends Foo {}

Foo::test (); Bar::test ();

?>

The above routines will output:

String (3) "foo" string (3) "Bar"

PHP Static Delay Binding