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<?php $data=array('data'=>array('something')); echo "Good\n"; var_dump(isset($data['data'][0])); var_dump($data['data'][0]); echo "Bad\n"; var_dump(isset($data['data'][0]['data'])); var_dump($data['data'][0]['data']); echo "Ugly\n"; var_dump(isset($data['data'][0]['data'][0])); var_dump($data['data'][0]['data'][0]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qoufW
function name:  (null)
number of ops:  41
compiled vars:  !0 = $data
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        ECHO                                                     'Good%0A'
    6     2        INIT_FCALL                                               'var_dump'
          3        FETCH_DIM_IS                                     ~2      !0, 'data'
          4        ISSET_ISEMPTY_DIM_OBJ                         0  ~3      ~2, 0
          5        SEND_VAL                                                 ~3
          6        DO_ICALL                                                 
    7     7        INIT_FCALL                                               'var_dump'
          8        FETCH_DIM_R                                      ~5      !0, 'data'
          9        FETCH_DIM_R                                      ~6      ~5, 0
         10        SEND_VAL                                                 ~6
         11        DO_ICALL                                                 
   10    12        ECHO                                                     'Bad%0A'
   11    13        INIT_FCALL                                               'var_dump'
         14        FETCH_DIM_IS                                     ~8      !0, 'data'
         15        FETCH_DIM_IS                                     ~9      ~8, 0
         16        ISSET_ISEMPTY_DIM_OBJ                         0  ~10     ~9, 'data'
         17        SEND_VAL                                                 ~10
         18        DO_ICALL                                                 
   12    19        INIT_FCALL                                               'var_dump'
         20        FETCH_DIM_R                                      ~12     !0, 'data'
         21        FETCH_DIM_R                                      ~13     ~12, 0
         22        FETCH_DIM_R                                      ~14     ~13, 'data'
         23        SEND_VAL                                                 ~14
         24        DO_ICALL                                                 
   15    25        ECHO                                                     'Ugly%0A'
   16    26        INIT_FCALL                                               'var_dump'
         27        FETCH_DIM_IS                                     ~16     !0, 'data'
         28        FETCH_DIM_IS                                     ~17     ~16, 0
         29        FETCH_DIM_IS                                     ~18     ~17, 'data'
         30        ISSET_ISEMPTY_DIM_OBJ                         0  ~19     ~18, 0
         31        SEND_VAL                                                 ~19
         32        DO_ICALL                                                 
   17    33        INIT_FCALL                                               'var_dump'
         34        FETCH_DIM_R                                      ~21     !0, 'data'
         35        FETCH_DIM_R                                      ~22     ~21, 0
         36        FETCH_DIM_R                                      ~23     ~22, 'data'
         37        FETCH_DIM_R                                      ~24     ~23, 0
         38        SEND_VAL                                                 ~24
         39        DO_ICALL                                                 
         40      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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