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<?php $str = "helloworld"; var_dump( isset($str['f']['f']) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/A7Bqb
function name:  (null)
number of ops:  7
compiled vars:  !0 = $str
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'helloworld'
    4     1        INIT_FCALL                                                   'var_dump'
          2        FETCH_DIM_IS                                         ~2      !0, 'f'
          3        ISSET_ISEMPTY_DIM_OBJ                             0  ~3      ~2, 'f'
          4        SEND_VAL                                                     ~3
          5        DO_ICALL                                                     
          6      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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