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<?php class A {} class B extends A {} $a = new A(); $b = new B(); echo $a instanceof $b;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/87Iad
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   NEW                                              $2      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    7     3        NEW                                              $5      'B'
          4        DO_FCALL                                      0          
          5        ASSIGN                                                   !1, $5
    8     6        FETCH_CLASS                                   0  $8      !1
          7        INSTANCEOF                                       ~9      !0, $8
          8        ECHO                                                     ~9
          9      > 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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