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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 Answer extends Exception { public function getAnswer(Question $q) { $qReflect = new ReflectionClass($q); print_r( $qReflect->getProperty('answer')->getValue()); } } $e = new Answer; // end editing here new Question($e);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: ReflectionProperty::getValue(): Argument #1 ($object) must be provided for instance properties in /in/vMEXN:28 Stack trace: #0 /in/vMEXN(28): ReflectionProperty->getValue() #1 /in/vMEXN(16): Answer->getAnswer(Object(Question)) #2 /in/vMEXN(37): Question->__construct(Object(Answer)) #3 {main} thrown in /in/vMEXN on line 28
Process exited with code 255.

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