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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) { return $q::answer; } } // end editing here new Question($e);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WUXW6
function name:  (null)
number of ops:  5
compiled vars:  !0 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   34     0  E >   NEW                                              $1      'Question'
          1        SEND_VAR_EX                                              !0
          2        DO_FCALL                                      0          
          3        FREE                                                     $1
          4      > RETURN                                                   1

Class Question:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 108) Position 1 = -2
Found catch point at position: 3
Branch analysis from position: 3
2 jumps found. (Code = 107) Position 1 = 4, Position 2 = -2
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WUXW6
function name:  __construct
number of ops:  11
compiled vars:  !0 = $e
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   RECV                                             !0      
   14     1      > THROW                                         0          !0
          2*       JMP                                                      ->10
   15     3  E > > CATCH                                       last         'Exception'
   16     4    >   INIT_METHOD_CALL                                         !0, 'getAnswer'
          5        FETCH_THIS                                       $1      
          6        SEND_VAR_EX                                              $1
          7        DO_FCALL                                      0  $2      
          8        CONCAT                                           ~3      $2, '%0A'
          9        ECHO                                                     ~3
   18    10      > RETURN                                                   null

End of function __construct

End of class Question.

Class Answer:
Function getanswer:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WUXW6
function name:  getAnswer
number of ops:  5
compiled vars:  !0 = $q
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   25     0  E >   RECV                                             !0      
   27     1        FETCH_CLASS                                   0  $1      !0
          2        FETCH_CLASS_CONSTANT                             ~2      $1, 'answer'
          3      > RETURN                                                   ~2
   28     4*     > RETURN                                                   null

End of function getanswer

End of class Answer.

Generated using Vulcan Logic Dumper, using php 8.0.0


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