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@ 2014-04-21T16:28:46Z

<?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
 * 4. No redefining $test
 * 
 * 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

$test->callback = "All your Base are Belong to us.";

// end editing here

echo $test->run();

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/kmJBV:31 Stack trace: #0 /in/kmJBV(43): Test->__set('callback', 'All your Base a...') #1 {main} thrown in /in/kmJBV on line 31
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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