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<?php class Bar {}; class Foo extends Bar {}; $foo = new Foo(); var_dump(is_sublcass_of($foo, 'Bar'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GAQX1
function name:  (null)
number of ops:  11
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   NEW                                              $1      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    9     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL_BY_NAME                                       'is_sublcass_of'
          5        SEND_VAR_EX                                              !0
          6        SEND_VAL_EX                                              'Bar'
          7        DO_FCALL                                      0  $4      
          8        SEND_VAR                                                 $4
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Class Bar: [no user functions]
Class Foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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