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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) { // Closure::bind() actually creates a new instance of the closure $sweetsThief = Closure::bind($this->sweetsThief, null, $that); var_dump($sweetsThief); } public function sweetsThief($that) { return $that->answer; } } $e = new exceptionFun(); // end editing here new Question($e);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined property: exceptionFun::$sweetsThief in /in/E7grf on line 35 Fatal error: Uncaught TypeError: Closure::bind(): Argument #1 ($closure) must be of type Closure, null given in /in/E7grf:35 Stack trace: #0 /in/E7grf(35): Closure::bind(NULL, NULL, Object(Question)) #1 /in/E7grf(16): exceptionFun->getAnswer(Object(Question)) #2 /in/E7grf(58): Question->__construct(Object(exceptionFun)) #3 {main} thrown in /in/E7grf on line 35
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined property: exceptionFun::$sweetsThief in /in/E7grf on line 35 Warning: Closure::bind() expects parameter 1 to be Closure, null given in /in/E7grf on line 35 NULL
Output for 7.3.32 - 7.3.33
Warning: Closure::bind() expects parameter 1 to be Closure, null given in /in/E7grf on line 35 NULL
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method Closure::bind() in /in/E7grf on line 35
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Class 'Closure' not found in /in/E7grf on line 35
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/E7grf on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/E7grf on line 9
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/E7grf on line 9
Process exited with code 255.
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