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<?php class A { } class B extends A { } $a = new A(); $b = new B(); var_dump($a); var_dump($a instanceof A); var_dump($a instanceof B); var_dump($b); var_dump($b instanceof A); var_dump($b instanceof B);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/o8W4j
function name:  (null)
number of ops:  29
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   NEW                                              $2      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
   11     3        NEW                                              $5      'B'
          4        DO_FCALL                                      0          
          5        ASSIGN                                                   !1, $5
   13     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
   14     9        INIT_FCALL                                               'var_dump'
         10        INSTANCEOF                                       ~9      !0, 'A'
         11        SEND_VAL                                                 ~9
         12        DO_ICALL                                                 
   15    13        INIT_FCALL                                               'var_dump'
         14        INSTANCEOF                                       ~11     !0, 'B'
         15        SEND_VAL                                                 ~11
         16        DO_ICALL                                                 
   17    17        INIT_FCALL                                               'var_dump'
         18        SEND_VAR                                                 !1
         19        DO_ICALL                                                 
   18    20        INIT_FCALL                                               'var_dump'
         21        INSTANCEOF                                       ~14     !1, 'A'
         22        SEND_VAL                                                 ~14
         23        DO_ICALL                                                 
   19    24        INIT_FCALL                                               'var_dump'
         25        INSTANCEOF                                       ~16     !1, 'B'
         26        SEND_VAL                                                 ~16
         27        DO_ICALL                                                 
         28      > 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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