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<?php $data=array('data'=>array('something')); echo "Good\n"; var_dump(isset($data['data'][0])); var_dump($data['data'][0]); echo "\nBad\n"; var_dump(isset($data['data'][0]['data'])); var_dump(@$data['data'][0]['data']); echo "\nUgly\n"; var_dump(isset($data['data'][0]['data'][0])); var_dump(@$data['data'][0]['data'][0]); echo "\nTrick or treat\n"; var_dump(isset($data['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'])); var_dump(@$data['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data'][0]['data']);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/h2YsC
function name:  (null)
number of ops:  88
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                                                     '%0ABad%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        BEGIN_SILENCE                                    ~12     
         21        FETCH_DIM_R                                      ~13     !0, 'data'
         22        FETCH_DIM_R                                      ~14     ~13, 0
         23        FETCH_DIM_R                                      ~15     ~14, 'data'
         24        END_SILENCE                                              ~12
         25        SEND_VAL                                                 ~15
         26        DO_ICALL                                                 
   15    27        ECHO                                                     '%0AUgly%0A'
   16    28        INIT_FCALL                                               'var_dump'
         29        FETCH_DIM_IS                                     ~17     !0, 'data'
         30        FETCH_DIM_IS                                     ~18     ~17, 0
         31        FETCH_DIM_IS                                     ~19     ~18, 'data'
         32        ISSET_ISEMPTY_DIM_OBJ                         0  ~20     ~19, 0
         33        SEND_VAL                                                 ~20
         34        DO_ICALL                                                 
   17    35        INIT_FCALL                                               'var_dump'
         36        BEGIN_SILENCE                                    ~22     
         37        FETCH_DIM_R                                      ~23     !0, 'data'
         38        FETCH_DIM_R                                      ~24     ~23, 0
         39        FETCH_DIM_R                                      ~25     ~24, 'data'
         40        FETCH_DIM_R                                      ~26     ~25, 0
         41        END_SILENCE                                              ~22
         42        SEND_VAL                                                 ~26
         43        DO_ICALL                                                 
   19    44        ECHO                                                     '%0ATrick+or+treat%0A'
   20    45        INIT_FCALL                                               'var_dump'
         46        FETCH_DIM_IS                                     ~28     !0, 'data'
         47        FETCH_DIM_IS                                     ~29     ~28, 0
         48        FETCH_DIM_IS                                     ~30     ~29, 'data'
         49        FETCH_DIM_IS                                     ~31     ~30, 0
         50        FETCH_DIM_IS                                     ~32     ~31, 'data'
         51        FETCH_DIM_IS                                     ~33     ~32, 0
         52        FETCH_DIM_IS                                     ~34     ~33, 'data'
         53        FETCH_DIM_IS                                     ~35     ~34, 0
         54        FETCH_DIM_IS                                     ~36     ~35, 'data'
         55        FETCH_DIM_IS                                     ~37     ~36, 0
         56        FETCH_DIM_IS                                     ~38     ~37, 'data'
         57        FETCH_DIM_IS                                     ~39     ~38, 0
         58        FETCH_DIM_IS                                     ~40     ~39, 'data'
         59        FETCH_DIM_IS                                     ~41     ~40, 0
         60        FETCH_DIM_IS                                     ~42     ~41, 'data'
         61        FETCH_DIM_IS                                     ~43     ~42, 0
         62        ISSET_ISEMPTY_DIM_OBJ                         0  ~44     ~43, 'data'
         63        SEND_VAL                                                 ~44
         64        DO_ICALL                                                 
   21    65        INIT_FCALL                                               'var_dump'
         66        BEGIN_SILENCE                                    ~46     
         67        FETCH_DIM_R                                      ~47     !0, 'data'
         68        FETCH_DIM_R                                      ~48     ~47, 0
         69        FETCH_DIM_R                                      ~49     ~48, 'data'
         70        FETCH_DIM_R                                      ~50     ~49, 0
         71        FETCH_DIM_R                                      ~51     ~50, 'data'
         72        FETCH_DIM_R                                      ~52     ~51, 0
         73        FETCH_DIM_R                                      ~53     ~52, 'data'
         74        FETCH_DIM_R                                      ~54     ~53, 0
         75        FETCH_DIM_R                                      ~55     ~54, 'data'
         76        FETCH_DIM_R                                      ~56     ~55, 0
         77        FETCH_DIM_R                                      ~57     ~56, 'data'
         78        FETCH_DIM_R                                      ~58     ~57, 0
         79        FETCH_DIM_R                                      ~59     ~58, 'data'
         80        FETCH_DIM_R                                      ~60     ~59, 0
         81        FETCH_DIM_R                                      ~61     ~60, 'data'
         82        FETCH_DIM_R                                      ~62     ~61, 0
         83        FETCH_DIM_R                                      ~63     ~62, 'data'
         84        END_SILENCE                                              ~46
         85        SEND_VAL                                                 ~63
         86        DO_ICALL                                                 
         87      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
167.56 ms | 945 KiB | 16 Q