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<?php function f() { return [ 'a' => 'b' ]; } var_dump(isset(f()['a']));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mvJPl
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'f'
          2        DO_FCALL                                      0  $0      
          3        ISSET_ISEMPTY_DIM_OBJ                         0  ~1      $0, 'a'
          4        SEND_VAL                                                 ~1
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mvJPl
function name:  f
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E > > RETURN                                                   <array>
    7     1*     > RETURN                                                   null

End of function f

Generated using Vulcan Logic Dumper, using php 8.0.0


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