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<?php interface I {} class C implements I {} class D {} var_dump((new C) instanceof I); var_dump((new D) instanceof I); var_dump(is_a(new C, 'I')); var_dump(is_a(new D, 'I'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kR6cN
function name:  (null)
number of ops:  32
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   DECLARE_CLASS                                            'c'
    7     1        INIT_FCALL                                               'var_dump'
          2        NEW                                              $0      'C'
          3        DO_FCALL                                      0          
          4        INSTANCEOF                                       ~2      $0, 'I'
          5        SEND_VAL                                                 ~2
          6        DO_ICALL                                                 
    8     7        INIT_FCALL                                               'var_dump'
          8        NEW                                              $4      'D'
          9        DO_FCALL                                      0          
         10        INSTANCEOF                                       ~6      $4, 'I'
         11        SEND_VAL                                                 ~6
         12        DO_ICALL                                                 
   10    13        INIT_FCALL                                               'var_dump'
         14        INIT_FCALL                                               'is_a'
         15        NEW                                              $8      'C'
         16        DO_FCALL                                      0          
         17        SEND_VAR                                                 $8
         18        SEND_VAL                                                 'I'
         19        DO_ICALL                                         $10     
         20        SEND_VAR                                                 $10
         21        DO_ICALL                                                 
   11    22        INIT_FCALL                                               'var_dump'
         23        INIT_FCALL                                               'is_a'
         24        NEW                                              $12     'D'
         25        DO_FCALL                                      0          
         26        SEND_VAR                                                 $12
         27        SEND_VAL                                                 'I'
         28        DO_ICALL                                         $14     
         29        SEND_VAR                                                 $14
         30        DO_ICALL                                                 
         31      > RETURN                                                   1

Class I: [no user functions]
Class C: [no user functions]
Class D: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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