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<?php $o = (object)array(42); var_dump(array_key_exists(0, $o), property_exists($o,'0'), isset($o->{0})); var_dump($o->{0}); $o->{0} = 37; var_dump(array_key_exists(0, $o), property_exists($o,'0'), isset($o->{0}));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QiYTv
function name:  (null)
number of ops:  31
compiled vars:  !0 = $o
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   CAST                                          8  ~1      <array>
          1        ASSIGN                                                   !0, ~1
    5     2        INIT_FCALL                                               'var_dump'
          3        ARRAY_KEY_EXISTS                                 ~3      0, !0
          4        SEND_VAL                                                 ~3
          5        INIT_FCALL                                               'property_exists'
          6        SEND_VAR                                                 !0
          7        SEND_VAL                                                 '0'
          8        DO_ICALL                                         $4      
          9        SEND_VAR                                                 $4
         10        ISSET_ISEMPTY_PROP_OBJ                           ~5      !0, '0'
         11        SEND_VAL                                                 ~5
         12        DO_ICALL                                                 
    7    13        INIT_FCALL                                               'var_dump'
         14        FETCH_OBJ_R                                      ~7      !0, '0'
         15        SEND_VAL                                                 ~7
         16        DO_ICALL                                                 
   10    17        ASSIGN_OBJ                                               !0, '0'
         18        OP_DATA                                                  37
   11    19        INIT_FCALL                                               'var_dump'
         20        ARRAY_KEY_EXISTS                                 ~10     0, !0
         21        SEND_VAL                                                 ~10
         22        INIT_FCALL                                               'property_exists'
         23        SEND_VAR                                                 !0
         24        SEND_VAL                                                 '0'
         25        DO_ICALL                                         $11     
         26        SEND_VAR                                                 $11
         27        ISSET_ISEMPTY_PROP_OBJ                           ~12     !0, '0'
         28        SEND_VAL                                                 ~12
         29        DO_ICALL                                                 
         30      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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