Online PHP editor | rfc for KjfCH

@ 2014-08-22T22:28:52Z

<?php

trait Delegator {

    private $delegates = [];

    protected function delegate($object, array $methods) {
        // check against duplicate methods
        $this->delegates[] = ['object' => $object, 'methods' => $methods];
    }

    function __call($method, array $args) {
        foreach ($this->delegates as $delegate) {
            if (in_array($method, $delegate['methods'])) {
                return call_user_func_array([$delegate['object'], $method], $args);
            }
        }

        throw new Exception('Method not found!');
    }

}

class AuthService {

    function authenticate($username, $password) {
        echo 'Doing the auth for ' . $username . '!';
    }

}

class UserModel {

    use Delegator;

    function __construct(AuthService $auth) {
        $this->delegate($auth, ['authenticate']);
    }

}

$auth = new AuthService();
$model = new UserModel($auth);

$model->authenticate('test', 'password');

Output for git.master, git.master_jit, rfc.property-hooks: Doing the auth for test!

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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