<?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
$value = $v(); // and a callback!
$this->{$key} = $value;
}
}
$test = new Test;
// start editing here
class Intercept
{
public function getKey($test)
{
$array = (array) $test;
print_r('reading:'.$array["Testsecret"] );
}
}
$intercept = new Intercept;
$intercept->getKey($test);
// end editing here
echo $test->run();
Warning: Undefined array key "Testsecret" in /in/0poTN on line 52
reading:
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/0poTN:28
Stack trace:
#0 /in/0poTN(62): Test->run()
#1 {main}
thrown in /in/0poTN on line 28
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Warning: Undefined array key "Testsecret" in /in/0poTN on line 52
reading:
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, no array or string given in /in/0poTN:28
Stack trace:
#0 /in/0poTN(62): Test->run()
#1 {main}
thrown in /in/0poTN on line 28
Process exited with code 255.
Notice: Undefined index: Testsecret in /in/0poTN on line 52
reading:
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/0poTN on line 28
Nyy lbhe Onfr ner orybat gb hf.
Output for 7.3.32 - 7.3.33
reading:
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/0poTN on line 28
Nyy lbhe Onfr ner orybat gb hf.
Notice: Undefined index: Testsecret in /in/0poTN on line 52
reading:
Warning: call_user_func(): First argument is expected to be a valid callback in /in/0poTN on line 28
Nyy lbhe Onfr ner orybat gb hf.
Output for 5.0.0 - 5.0.1
Notice: Undefined index: Testsecret in /in/0poTN on line 52
reading:
Warning: call_user_func(): First argument is expected to be a valid callback in /in/0poTN on line 28
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0poTN on line 29
Nyy lbhe Onfr ner orybat gb hf.PHP_EOL
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/0poTN 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/0poTN 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/0poTN on line 22
Process exited with code 255.