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<?php class Test { private $secret = 'Nyy lbhe Onfr ner orybat gb hf.'; private $callback; final public function run() { call_user_func($this->callback); return $this->secret . PHP_EOL; } public function __set($k, $v) { echo $k;exit; $key = $v[($v[$v])]; // $v is some kind of weird array $value = $v(); // and a callback! $this->{$key} = $value; } } $test = new Test; // start $closure = function(){ }; $closure->bindTo($test); $test->secret = 1; // end editing here echo $test->run();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2Gamn
function name:  (null)
number of ops:  14
compiled vars:  !0 = $test, !1 = $closure
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   26     0  E >   NEW                                              $2      'Test'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
   30     3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F2Gamn%3A30%240'
          4        ASSIGN                                                   !1, ~5
   34     5        INIT_METHOD_CALL                                         !1, 'bindTo'
          6        SEND_VAR_EX                                              !0
          7        DO_FCALL                                      0          
   37     8        ASSIGN_OBJ                                               !0, 'secret'
          9        OP_DATA                                                  1
   41    10        INIT_METHOD_CALL                                         !0, 'run'
         11        DO_FCALL                                      0  $9      
         12        ECHO                                                     $9
         13      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2F2Gamn%3A30%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2Gamn
function name:  {closure}
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   32     0  E > > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F2Gamn%3A30%240

Class Test:
Function run:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2Gamn
function name:  run
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   FETCH_OBJ_R                                      ~0      'callback'
          1        INIT_USER_CALL                                0          'call_user_func', ~0
          2        DO_FCALL                                      0          
   12     3        FETCH_OBJ_R                                      ~2      'secret'
          4        CONCAT                                           ~3      ~2, '%0A'
          5      > RETURN                                                   ~3
   13     6*     > RETURN                                                   null

End of function run

Function __set:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/2Gamn
function name:  __set
number of ops:  13
compiled vars:  !0 = $k, !1 = $v, !2 = $key, !3 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   17     2        ECHO                                                     !0
          3      > EXIT                                                     
   18     4*       FETCH_DIM_R                                      ~4      !1, !1
          5*       FETCH_DIM_R                                      ~5      !1, ~4
          6*       ASSIGN                                                   !2, ~5
   19     7*       INIT_DYNAMIC_CALL                                        !1
          8*       DO_FCALL                                      0  $7      
          9*       ASSIGN                                                   !3, $7
   20    10*       ASSIGN_OBJ                                               !2
         11*       OP_DATA                                                  !3
   21    12*     > RETURN                                                   null

End of function __set

End of class Test.

Generated using Vulcan Logic Dumper, using php 8.0.0


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