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@ 2014-03-06T13:16:18Z

<?php

/*
 * Challenge 1: Modify Test::$secret before it's output.
 *
 * Rules::
 * 1. No use of Reflection API / runkit extension
 * 2. No stopping execution before Test::run()
 * 3. No Exceptions or PHP errors / warnings notices allowed
 *
 * Hints:
 * 1. Caesar
 * 2. Magic methods
 * 3. Requires a new feature of PHP 5.4
 *
 * */


class Test
{
    private $secret = 'Nyy lbhe Onfr ner orybat gb hf.';

    private $callback;

    final public function run()
    {
        call_user_func($this->callback);
        return $this->secret . PHP_EOL;
    }

    public function __set($k, $v)
    {
        $key = $v[($v[$v])]; // $v is some kind of weird array
        $value = $v(); // and a callback!
        $this->{$key} = $value;
    }

}


$test = new Test;

// start editing here

class foo implements ArrayAccess
{
    private $bar = array('a', 'b', 'callback', 'time', 'c', 'secret', 'whatever');

    public function offsetExists ( $offset ) { return true; }
    public function offsetGet ( $offset ) { return next($this->bar); }
    public function offsetSet ( $offset, $value ) { }
    public function offsetUnset ( $offset ) { }

    public function __invoke() { return next($this->bar); }
}

$tree = new foo();
$test->hack = $tree;

// end editing here

echo $test->run();

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Return type of foo::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jWVB4 on line 49 Deprecated: Return type of foo::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jWVB4 on line 50 Deprecated: Return type of foo::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jWVB4 on line 51 Deprecated: Return type of foo::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jWVB4 on line 52 Nyy lbhe Onfr ner orybat gb hf.

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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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