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<?php var_dump(($a = 9+9) instanceof StdClass);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Ao1hv
function name:  (null)
number of ops:  6
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        ASSIGN                                           ~1      !0, 18
          2        INSTANCEOF                                       ~2      ~1, 'StdClass'
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                                 
          5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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