<?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 A implements ArrayAccess {
private $callCount = 0;
public $func;
public function __construct(){
$this->func = function(){
echo "A".$this->secret."B";die;
};
}
public function __invoke(){
return $this->func;
}
public function offsetSet($offset, $value) {}
public function offsetExists($offset) { return true; }
public function offsetUnset($offset) {}
public function offsetGet($offset) {
$this->callCount++;
if ($this->callCount == 1){
$r = $this;
} else {
$r = "callback";
}
return $r;
}
}
$a = new A;
$a->func = $a->func->bindTo($test);
$test->foo = $a;
// end editing here
echo $test->run();
Deprecated: Return type of A::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/MRA9C on line 68
Deprecated: Return type of A::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/MRA9C on line 70
Deprecated: Return type of A::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/MRA9C on line 67
Deprecated: Return type of A::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/MRA9C on line 69
Fatal error: Uncaught Error: Cannot access private property Test::$secret in /in/MRA9C:53
Stack trace:
#0 /in/MRA9C(27): A->{closure}()
#1 /in/MRA9C(90): Test->run()
#2 {main}
thrown in /in/MRA9C on line 53
Process exited with code 255.
Fatal error: Cannot access private property Test::$secret in /in/MRA9C on line 53
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method Closure::bindTo() in /in/MRA9C on line 84
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/MRA9C on line 52
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/MRA9C on line 52
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/MRA9C 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/MRA9C 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/MRA9C on line 21
Process exited with code 255.