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<?php class A { } class B extends A { } $testA = new A(); $testB = new B(); var_dump($testA instanceof B); var_dump($testB instanceof B);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ERshP
function name:  (null)
number of ops:  15
compiled vars:  !0 = $testA, !1 = $testB
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   NEW                                              $2      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    8     3        NEW                                              $5      'B'
          4        DO_FCALL                                      0          
          5        ASSIGN                                                   !1, $5
    9     6        INIT_FCALL                                               'var_dump'
          7        INSTANCEOF                                       ~8      !0, 'B'
          8        SEND_VAL                                                 ~8
          9        DO_ICALL                                                 
   10    10        INIT_FCALL                                               'var_dump'
         11        INSTANCEOF                                       ~10     !1, 'B'
         12        SEND_VAL                                                 ~10
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Class A: [no user functions]
Class B: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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