<?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
echo $key;
$value = $v(); // and a callback!
$this->{$key} = $value;
}
}
$test = new Test;
// start editing here
$test->foo = "bar";
// end editing here
echo $test->run();
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/0XG2p:33
Stack trace:
#0 /in/0XG2p(47): Test->__set('foo', 'bar')
#1 {main}
thrown in /in/0XG2p on line 33
Process exited with code 255.
Warning: Illegal string offset 'bar' in /in/0XG2p on line 33
Warning: Illegal string offset 'b' in /in/0XG2p on line 33
b
Fatal error: Uncaught Error: Call to undefined function bar() in /in/0XG2p:35
Stack trace:
#0 /in/0XG2p(47): Test->__set('foo', 'bar')
#1 {main}
thrown in /in/0XG2p on line 35
Process exited with code 255.
Warning: Illegal string offset 'bar' in /in/0XG2p on line 33
Warning: Illegal string offset 'b' in /in/0XG2p on line 33
b
Fatal error: Call to undefined function bar() in /in/0XG2p on line 35
Process exited with code 255.
b
Fatal error: Call to undefined function bar() in /in/0XG2p on line 35
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/0XG2p 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/0XG2p 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/0XG2p on line 21
Process exited with code 255.