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<?php interface a { } class b { } $b = new b; var_dump(is_subclass_of($b, 'a'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RqjGK
function name:  (null)
number of ops:  11
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   NEW                                              $1      'b'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   13     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL                                               'is_subclass_of'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 'a'
          7        DO_ICALL                                         $4      
          8        SEND_VAR                                                 $4
          9        DO_ICALL                                                 
         10      > 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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