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<?php class A { public function foo() { echo __FUNCTION__; } } class B extends A { public function getClosure() { return function() { parent::foo(); }; } } class C { public function __construct(B $b) { $b->getClosure()(); } } new C(new B);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P1MRc
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   23     0  E >   NEW                                                  $0      'C'
          1        NEW                                                  $1      'B'
          2        DO_FCALL                                          0          
          3        SEND_VAR_NO_REF_EX                                           $1
          4        DO_FCALL                                          0          
          5        FREE                                                         $0
          6      > RETURN                                                       1

Class A:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P1MRc
function name:  foo
number of ops:  2
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   ECHO                                                         'foo'
    6     1      > RETURN                                                       null

End of function foo

End of class A.

Class B:
Function getclosure:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P1MRc
function name:  getClosure
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   11     0  E >   DECLARE_LAMBDA_FUNCTION                              ~0      [0]
   13     1      > RETURN                                                       ~0
   14     2*     > RETURN                                                       null


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P1MRc
function name:  {closure:B::getClosure():11}
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   12     0  E >   INIT_STATIC_METHOD_CALL                                      'foo'
          1        DO_FCALL                                          0          
   13     2      > RETURN                                                       null

End of Dynamic Function 0

End of function getclosure

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P1MRc
function name:  foo
number of ops:  2
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   ECHO                                                         'foo'
    6     1      > RETURN                                                       null

End of function foo

End of class B.

Class C:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/P1MRc
function name:  __construct
number of ops:  6
compiled vars:  !0 = $b
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   18     0  E >   RECV                                                 !0      
   19     1        INIT_METHOD_CALL                                             !0, 'getClosure'
          2        DO_FCALL                                          0  $1      
          3        INIT_DYNAMIC_CALL                                            $1
          4        DO_FCALL                                          0          
   20     5      > RETURN                                                       null

End of function __construct

End of class C.

Generated using Vulcan Logic Dumper, using php 8.5.0


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