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<? class Dog { } class Poodle extends Dog { } $poppy = new Poodle( ); print (int)($poppy instanceof Dog); print "\n"; print (int)is_subclass_of($poppy, "Dog"); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/uSN6Y
function name:  (null)
number of ops:  14
compiled vars:  !0 = $poppy
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   NEW                                              $1      'Poodle'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    5     3        INSTANCEOF                                       ~4      !0, 'Dog'
          4        CAST                                          4  ~5      ~4
          5        ECHO                                                     ~5
    6     6        ECHO                                                     '%0A'
    7     7        INIT_FCALL                                               'is_subclass_of'
          8        SEND_VAR                                                 !0
          9        SEND_VAL                                                 'Dog'
         10        DO_ICALL                                         $6      
         11        CAST                                          4  ~7      $6
         12        ECHO                                                     ~7
    8    13      > RETURN                                                   1

Class Dog: [no user functions]
Class Poodle: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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