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run code in 150+ php & hhvm versions
Bugs & Features
<?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 $that; public function getAnswer($that) { /* $this->that = $that; $answerTime = Closure::bind($this->getPrivate(), null, $that); var_dump($answerTime); */ //$this->that = $that; $answerTime = Closure::bind(function () { return $this->answer; }, $that, $that); var_dump($answerTime); var_dump($sweetsThief($that)); } public function getPrivate() { $that = $this->that; return $that->answer; } } $e = new exceptionFun(); // end editing here new Question($e);
Output for 7.0.0 - 7.1.0
object(Closure)#4 (1) { ["this"]=> object(Question)#2 (1) { ["answer":"Question":private]=> int(42) } } Notice: Undefined variable: sweetsThief in /in/eU5tS on line 47 Fatal error: Uncaught Error: Function name must be a string in /in/eU5tS:47 Stack trace: #0 /in/eU5tS(16): exceptionFun->getAnswer(Object(Question)) #1 /in/eU5tS(65): Question->__construct(Object(exceptionFun)) #2 {main} thrown in /in/eU5tS on line 47
Process exited with code 255.
Output for hhvm-3.12.0
object(Closure$exceptionFun::getAnswer;1165892780)#4 (1) { ["this"]=> object(Question)#2 (1) { ["answer":"Question":private]=> int(42) } } Notice: Undefined variable: sweetsThief in /in/eU5tS on line 47 Fatal error: Function name must be a string in /in/eU5tS on line 47
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.6.21
object(Closure)#4 (1) { ["this"]=> object(Question)#2 (1) { ["answer":"Question":private]=> int(42) } } Notice: Undefined variable: sweetsThief in /in/eU5tS on line 47 Fatal error: Function name must be a string in /in/eU5tS on line 47
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method Closure::bind() in /in/eU5tS on line 43
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/eU5tS on line 43
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/eU5tS on line 43
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/eU5tS on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/eU5tS 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/eU5tS on line 9
Process exited with code 255.