<?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
$test->callback = '1';
// end editing here
echo $test->run();
Warning: Uninitialized string offset 1 in /in/sVnXC on line 33
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/sVnXC:33
Stack trace:
#0 /in/sVnXC(45): Test->__set('callback', '1')
#1 {main}
thrown in /in/sVnXC on line 33
Process exited with code 255.
Notice: Uninitialized string offset: 1 in /in/sVnXC on line 33
Warning: Illegal string offset '' in /in/sVnXC on line 33
Fatal error: Uncaught Error: Call to undefined function 1() in /in/sVnXC:34
Stack trace:
#0 /in/sVnXC(45): Test->__set('callback', '1')
#1 {main}
thrown in /in/sVnXC on line 34
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Warning: Illegal string offset '' in /in/sVnXC on line 33
Fatal error: Uncaught Error: Call to undefined function 1() in /in/sVnXC:34
Stack trace:
#0 /in/sVnXC(45): Test->__set('callback', '1')
#1 {main}
thrown in /in/sVnXC on line 34
Process exited with code 255.
Notice: Uninitialized string offset: 1 in /in/sVnXC on line 33
Warning: Illegal string offset '' in /in/sVnXC on line 33
Fatal error: Call to undefined function 1() in /in/sVnXC on line 34
Process exited with code 255.
Output for 5.2.10 - 5.2.17, 5.3.0 - 5.3.29
Notice: Uninitialized string offset: 1 in /in/sVnXC on line 33
Fatal error: Call to undefined function 1() in /in/sVnXC on line 34
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.9
Notice: Uninitialized string offset: 1 in /in/sVnXC on line 33
Fatal error: Call to undefined function 1() in /in/sVnXC on line 34
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Cannot access private property Test::$callback in /in/sVnXC on line 45
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/sVnXC 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/sVnXC 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/sVnXC on line 21
Process exited with code 255.