<?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 Fixer extends ArrayObject
{
public $k;
public $v;
public function offsetGet($i)
{
return $this->k;
}
public function __construct($k, $v)
{
$this->k = $k;
$this->v = $v;
}
public function __invoke()
{
return $this->v;
}
}
$test->foo = new Fixer('callback', function() {});
// modifying secret, but no access to read it
$test->foo = new Fixer('secret', 'All your Base are belong to us.');
// end editing here
echo $test->run();
Deprecated: Return type of Fixer::offsetGet($i) should either be compatible with ArrayObject::offsetGet(mixed $key): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/Z1YE5 on line 53
All your Base are belong to us.
Parse error: syntax error, unexpected T_FUNCTION in /in/Z1YE5 on line 71
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/Z1YE5 on line 71
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Z1YE5 on line 22
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Z1YE5 on line 22
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/Z1YE5 on line 22
Process exited with code 255.