Online PHP editor | rfc for f9BtY

@ 2013-09-27T09:57:58Z

<?php

class prototype
{
    private $inherited;

    private $instance;

    public function __construct(prototype $prototype = null)
    {
        $this->inherited = $prototype;
        $this->instance = [];
    }

    public function __set($name, $value)
    {
        if ($value instanceof \Closure) {
            $value = $value->bindTo($this);
        }

        $this->instance[$name] = $value;
    }

    public function __get($name)
    {
        if (array_key_exists($name, $this->instance)) {
            return $this->instance[$name];
        } else {
            return $this->inherited->$name;
        }
    }

    public function __call($name, $arguments)
    {
        if (!isset($this->instance[$name]) && isset($this->inherited) && ($fromProto = $this->inherited->$name) instanceof \Closure) {
            $target = $fromProto->bindTo($this);
        } else if (isset($this->instance[$name]) && $this->instance[$name] instanceof \Closure) {
            $target = $this->instance[$name];
        } else {
            return;
        }

        return call_user_func_array($target, $arguments);
    }
}

$foo = new prototype;
$foo->foo = 'Foo!';
$foo->bar = function() {
    return $this->foo;
};

$bar = new prototype($foo);
$bar->foo = 'Bar!';

echo $foo->bar() . "\n";
echo $bar->bar() . "\n";

$foo->bar = function() {
    return "Baz!";
};
echo $foo->bar() . "\n";
echo $bar->bar() . "\n";

Output for git.master, git.master_jit, rfc.property-hooks: Foo! Bar! Baz! Baz!

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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