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@ 2014-05-01T20:01:25Z

<?php

class App {

    public static $classes = array();

    public static function register($name, Callable $generator) {
        $classes[$name] = $generator;
    }

    public static function make($name) {
        if (!isset($classes[$name])) {
			throw new Exception('Invalid class name');
        }

        return ($classes[$name])();
    }

}


// Internal declaration

class Foo {

    public static function bar() {
		return 'static';
    }

}

App::register('foo', function() {
    return new Foo;
});

// Internal Usage

class SomeController {

    public function view() {
		echo App::make('foo')->bar();
    }

}


// Some extending application

class MyFoo extends Foo {

    public static function bar() {
        return 'can\'t make internal methods use this.';
    }

}

App::register('foo', function() {
    return new MyFoo;
});


$c = new SomeController;
$c->view();

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Exception: Invalid class name in /in/vLXDG:13 Stack trace: #0 /in/vLXDG(41): App::make('foo') #1 /in/vLXDG(63): SomeController->view() #2 {main} thrown in /in/vLXDG on line 13
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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