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<?php $b = 'b'; $c = 'c'; $e = 'e'; $a = (object)['b' => (object)['e' => 2]]; @$d = $a->$b->$c; var_dump($d); @$d = $a->$b->$e; var_dump($d);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jYAj9
function name:  (null)
number of ops:  24
compiled vars:  !0 = $b, !1 = $c, !2 = $e, !3 = $a, !4 = $d
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'b'
    4     1        ASSIGN                                                       !1, 'c'
    5     2        ASSIGN                                                       !2, 'e'
    6     3        CAST                                              8  ~8      <array>
          4        INIT_ARRAY                                           ~9      ~8, 'b'
          5        CAST                                              8  ~10     ~9
          6        ASSIGN                                                       !3, ~10
    7     7        BEGIN_SILENCE                                        ~12     
          8        FETCH_OBJ_R                                          ~13     !3, !0
          9        FETCH_OBJ_R                                          ~14     ~13, !1
         10        ASSIGN                                                       !4, ~14
         11        END_SILENCE                                                  ~12
    8    12        INIT_FCALL                                                   'var_dump'
         13        SEND_VAR                                                     !4
         14        DO_ICALL                                                     
    9    15        BEGIN_SILENCE                                        ~17     
         16        FETCH_OBJ_R                                          ~18     !3, !0
         17        FETCH_OBJ_R                                          ~19     ~18, !2
         18        ASSIGN                                                       !4, ~19
         19        END_SILENCE                                                  ~17
   10    20        INIT_FCALL                                                   'var_dump'
         21        SEND_VAR                                                     !4
         22        DO_ICALL                                                     
         23      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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