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<?php $string = 'this is a string'; var_dump($string['check']); var_dump(isset($string['check'])); var_dump(isset($string['check'][0]));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5GGYm
function name:  (null)
number of ops:  15
compiled vars:  !0 = $string
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'this+is+a+string'
    4     1        INIT_FCALL                                               'var_dump'
          2        FETCH_DIM_R                                      ~2      !0, 'check'
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                                 
    6     5        INIT_FCALL                                               'var_dump'
          6        ISSET_ISEMPTY_DIM_OBJ                         0  ~4      !0, 'check'
          7        SEND_VAL                                                 ~4
          8        DO_ICALL                                                 
    7     9        INIT_FCALL                                               'var_dump'
         10        FETCH_DIM_IS                                     ~6      !0, 'check'
         11        ISSET_ISEMPTY_DIM_OBJ                         0  ~7      ~6, 0
         12        SEND_VAL                                                 ~7
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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