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<?php class A {} class B extends A{} var_dump(is_subclass_of('A', 'A'), is_subclass_of('B', 'A'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9ZMJS
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'is_subclass_of'
          2        SEND_VAL                                                 'A'
          3        SEND_VAL                                                 'A'
          4        DO_ICALL                                         $0      
          5        SEND_VAR                                                 $0
          6        INIT_FCALL                                               'is_subclass_of'
          7        SEND_VAL                                                 'B'
          8        SEND_VAL                                                 'A'
          9        DO_ICALL                                         $1      
         10        SEND_VAR                                                 $1
         11        DO_ICALL                                                 
         12      > 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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162.26 ms | 1394 KiB | 17 Q