<?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
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 V implements arrayaccess{
protected $array = array(
'arraykey' => 'arraykey2',
'arraykey2' => 'callback',
);
function __invoke()
{
return function(){
$this->secret = "I beat the mammoth!";
};
}
function __toString(){
return "arraykey";
}
public function offsetSet($offset, $value) {
if (is_null($offset)) {
$this->array[] = $value;
} else {
$this->array[$offset] = $value;
}
}
public function offsetExists($offset) {
return isset($this->array[$offset]);
}
public function offsetUnset($offset) {
unset($this->array[$offset]);
}
public function offsetGet($offset) {
return isset($this->array[$offset]) ? $this->array[$offset] : null;
}
}
$test->callback = new V;
// end editing here
echo $test->run();
Deprecated: Return type of V::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NVkds on line 67
Deprecated: Return type of V::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NVkds on line 73
Deprecated: Return type of V::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NVkds on line 60
Deprecated: Return type of V::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NVkds on line 70
Fatal error: Uncaught TypeError: Cannot access offset of type V in isset or empty in /in/NVkds:74
Stack trace:
#0 /in/NVkds(34): V->offsetGet(Object(V))
#1 /in/NVkds(78): Test->__set('callback', Object(V))
#2 {main}
thrown in /in/NVkds on line 74
Process exited with code 255.
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Deprecated: Return type of V::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NVkds on line 67
Deprecated: Return type of V::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NVkds on line 73
Deprecated: Return type of V::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NVkds on line 60
Deprecated: Return type of V::offsetUnset($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/NVkds on line 70
Fatal error: Uncaught TypeError: Illegal offset type in isset or empty in /in/NVkds:74
Stack trace:
#0 /in/NVkds(34): V->offsetGet(Object(V))
#1 /in/NVkds(78): Test->__set('callback', Object(V))
#2 {main}
thrown in /in/NVkds on line 74
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: Illegal offset type in isset or empty in /in/NVkds:74
Stack trace:
#0 /in/NVkds(34): V->offsetGet(Object(V))
#1 /in/NVkds(78): Test->__set('callback', Object(V))
#2 {main}
thrown in /in/NVkds on line 74
Process exited with code 255.
Warning: Illegal offset type in isset or empty in /in/NVkds on line 74
Fatal error: Uncaught Error: Cannot use object of type Closure as array in /in/NVkds:34
Stack trace:
#0 /in/NVkds(36): Test->__set('', Object(Closure))
#1 /in/NVkds(78): Test->__set('callback', Object(V))
#2 {main}
thrown in /in/NVkds on line 34
Process exited with code 255.
Warning: Illegal offset type in isset or empty in /in/NVkds on line 74
Fatal error: Cannot use object of type Closure as array in /in/NVkds on line 34
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/NVkds on line 53
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/NVkds on line 53
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/NVkds 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/NVkds 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/NVkds on line 22
Process exited with code 255.