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<?php /* Challenge 3: Use reflection to get access to Question::$answer from $e->getAnswer */ class Question { private $answer = 42; public function __construct($e) { try { throw $e; } catch (Exception $e) { echo $e->getAnswer($this) . PHP_EOL; } } } // start editing here class exceptionFun extends Exception { public function getAnswer($that) { $getTheAnswer = Closure::bind($this->getPrivate(), null, $that); $result = $getTheAnswer($that); return $result; } public function getPrivate($that = null) { return $that->answer; } } $e = new exceptionFun(); // end editing here new Question($e);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Attempt to read property "answer" on null in /in/UEZcc on line 38 Fatal error: Uncaught TypeError: Closure::bind(): Argument #1 ($closure) must be of type Closure, null given in /in/UEZcc:29 Stack trace: #0 /in/UEZcc(29): Closure::bind(NULL, NULL, Object(Question)) #1 /in/UEZcc(16): exceptionFun->getAnswer(Object(Question)) #2 /in/UEZcc(47): Question->__construct(Object(exceptionFun)) #3 {main} thrown in /in/UEZcc on line 29
Process exited with code 255.

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