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<?php $str = 'abc'; var_dump($str['1']); var_dump(isset($str['1'])); var_dump($str['1.0']); var_dump(isset($str['1.0'])); var_dump($str['x']); var_dump(isset($str['x'])); var_dump($str['1x']); var_dump(isset($str['1x'])); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DUh8o
function name:  (null)
number of ops:  34
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'abc'
    4     1        INIT_FCALL                                               'var_dump'
          2        FETCH_DIM_R                                      ~2      !0, 1
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                                 
    5     5        INIT_FCALL                                               'var_dump'
          6        ISSET_ISEMPTY_DIM_OBJ                         0  ~4      !0, 1
          7        SEND_VAL                                                 ~4
          8        DO_ICALL                                                 
    7     9        INIT_FCALL                                               'var_dump'
         10        FETCH_DIM_R                                      ~6      !0, '1.0'
         11        SEND_VAL                                                 ~6
         12        DO_ICALL                                                 
    8    13        INIT_FCALL                                               'var_dump'
         14        ISSET_ISEMPTY_DIM_OBJ                         0  ~8      !0, '1.0'
         15        SEND_VAL                                                 ~8
         16        DO_ICALL                                                 
   10    17        INIT_FCALL                                               'var_dump'
         18        FETCH_DIM_R                                      ~10     !0, 'x'
         19        SEND_VAL                                                 ~10
         20        DO_ICALL                                                 
   11    21        INIT_FCALL                                               'var_dump'
         22        ISSET_ISEMPTY_DIM_OBJ                         0  ~12     !0, 'x'
         23        SEND_VAL                                                 ~12
         24        DO_ICALL                                                 
   13    25        INIT_FCALL                                               'var_dump'
         26        FETCH_DIM_R                                      ~14     !0, '1x'
         27        SEND_VAL                                                 ~14
         28        DO_ICALL                                                 
   14    29        INIT_FCALL                                               'var_dump'
         30        ISSET_ISEMPTY_DIM_OBJ                         0  ~16     !0, '1x'
         31        SEND_VAL                                                 ~16
         32        DO_ICALL                                                 
   15    33      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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