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<?php class A { private $a; public static function C() { var_dump(isset($this)); return $this->a; } public function F() { $f = function() { return $this->a; }; return $f(); } } $a = new A; $a->F();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bkR3A
function name:  (null)
number of ops:  6
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   NEW                                              $1      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   18     3        INIT_METHOD_CALL                                         !0, 'F'
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FbkR3A%3A10%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bkR3A
function name:  {closure}
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   FETCH_THIS                                       $0      
          1        FETCH_OBJ_R                                      ~1      $0, 'a'
          2      > RETURN                                                   ~1
   12     3*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FbkR3A%3A10%240

Class A:
Function c:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bkR3A
function name:  C
number of ops:  8
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'var_dump'
          1        ISSET_ISEMPTY_THIS                               ~0      
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
    6     4        FETCH_THIS                                       $2      
          5        FETCH_OBJ_R                                      ~3      $2, 'a'
          6      > RETURN                                                   ~3
    7     7*     > RETURN                                                   null

End of function c

Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bkR3A
function name:  F
number of ops:  6
compiled vars:  !0 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FbkR3A%3A10%240'
          1        ASSIGN                                                   !0, ~1
   13     2        INIT_DYNAMIC_CALL                                        !0
          3        DO_FCALL                                      0  $3      
          4      > RETURN                                                   $3
   14     5*     > RETURN                                                   null

End of function f

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


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