<?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 $test->run();
Deprecated: Return type of foo::offsetExists($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.
Fatal error: Function name must be a string in /in/jWVB4 on line 34
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/jWVB4 on line 21
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/jWVB4 on line 21
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/jWVB4 on line 21
Process exited with code 255.