<?php
/*
Challenge 1: Read and write to 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
$this->testy = $key;
$value = $v(); // and a callback!
$this->{$key} = $value;
}
}
$test = new Test;
// start editing here
class Intercept
{
public function getKey($test)
{
$array = (array) $test;
reset($array);
$first_key = key($array);
print_r($array[$first_key]);
$v = array();
$v[$first_key] = 'blah';
$blah = $v[$first_key];
$test->__set($array[$first_key] , 'blah');
/*
foreach($array as $k => $v)
{
print_r($k);
print_r($v);
}
*/
}
}
$intercept = new Intercept;
$intercept->getKey($test);
// end editing here
echo $test->run();
Nyy lbhe Onfr ner orybat gb hf.
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/KgMtM:36
Stack trace:
#0 /in/KgMtM(67): Test->__set('Nyy lbhe Onfr n...', 'blah')
#1 /in/KgMtM(80): Intercept->getKey(Object(Test))
#2 {main}
thrown in /in/KgMtM on line 36
Process exited with code 255.
Nyy lbhe Onfr ner orybat gb hf.
Warning: Illegal string offset 'blah' in /in/KgMtM on line 36
Warning: Illegal string offset 'b' in /in/KgMtM on line 36
Warning: Illegal string offset 'b' in /in/KgMtM on line 36
Warning: Illegal string offset 'b' in /in/KgMtM on line 36
Fatal error: Uncaught Error: Call to undefined function b() in /in/KgMtM:38
Stack trace:
#0 /in/KgMtM(37): Test->__set('testy', 'b')
#1 /in/KgMtM(67): Test->__set('Nyy lbhe Onfr n...', 'blah')
#2 /in/KgMtM(80): Intercept->getKey(Object(Test))
#3 {main}
thrown in /in/KgMtM on line 38
Process exited with code 255.
Nyy lbhe Onfr ner orybat gb hf.
Warning: Illegal string offset 'blah' in /in/KgMtM on line 36
Warning: Illegal string offset 'b' in /in/KgMtM on line 36
Warning: Illegal string offset 'b' in /in/KgMtM on line 36
Warning: Illegal string offset 'b' in /in/KgMtM on line 36
Fatal error: Call to undefined function b() in /in/KgMtM on line 38
Process exited with code 255.
Nyy lbhe Onfr ner orybat gb hf.
Fatal error: Call to undefined function b() in /in/KgMtM on line 38
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/KgMtM 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/KgMtM 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/KgMtM on line 22
Process exited with code 255.