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<?php class A { private $foo = 'bar'; } class B extends A { public function getFoo() { return ((array)$this)[chr(0) . 'A' . chr(0) . 'foo']; } } $b = new B(); var_dump($b->getFoo());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ah6Rr
function name:  (null)
number of ops:  9
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   NEW                                              $1      'B'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   17     3        INIT_FCALL                                               'var_dump'
          4        INIT_METHOD_CALL                                         !0, 'getFoo'
          5        DO_FCALL                                      0  $4      
          6        SEND_VAR                                                 $4
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Class A: [no user functions]
Class B:
Function getfoo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ah6Rr
function name:  getFoo
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   FETCH_THIS                                       ~0      
          1        CAST                                          7  ~1      ~0
          2        FETCH_DIM_R                                      ~2      ~1, '%00A%00foo'
          3      > RETURN                                                   ~2
   12     4*     > RETURN                                                   null

End of function getfoo

End of class B.

Generated using Vulcan Logic Dumper, using php 8.0.0


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