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<?php interface MyInterface { } class BaseClass implements MyInterface{ } class MyClass extends BaseClass{ } $object = new MyClass(); echo @is_subclass_of('BaseClass', 'BaseClass')? "Yes ":"No "; echo @is_subclass_of('MyClass', 'BaseClass')? "Yes ":"No "; echo @is_subclass_of('MyClass', 'MyInterface')? "Yes ":"No "; echo "\n"; echo @is_subclass_of($object, 'BaseClass')? "Yes ":"No "; echo @is_subclass_of($object, 'MyInterface')? "Yes ":"No "; $object2 = new myclass(); echo "\n"; echo @is_subclass_of($object2, 'BaseClass')? "Yes ":"No "; echo @is_subclass_of($object2, 'MyInterface')? "Yes ":"No ";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 12, Position 2 = 14
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
2 jumps found. (Code = 43) Position 1 = 34, Position 2 = 36
Branch analysis from position: 34
1 jumps found. (Code = 42) Position 1 = 37
Branch analysis from position: 37
2 jumps found. (Code = 43) Position 1 = 46, Position 2 = 48
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 49
Branch analysis from position: 49
2 jumps found. (Code = 43) Position 1 = 57, Position 2 = 59
Branch analysis from position: 57
1 jumps found. (Code = 42) Position 1 = 60
Branch analysis from position: 60
2 jumps found. (Code = 43) Position 1 = 72, Position 2 = 74
Branch analysis from position: 72
1 jumps found. (Code = 42) Position 1 = 75
Branch analysis from position: 75
2 jumps found. (Code = 43) Position 1 = 83, Position 2 = 85
Branch analysis from position: 83
1 jumps found. (Code = 42) Position 1 = 86
Branch analysis from position: 86
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 85
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 74
2 jumps found. (Code = 43) Position 1 = 83, Position 2 = 85
Branch analysis from position: 83
Branch analysis from position: 85
Branch analysis from position: 59
2 jumps found. (Code = 43) Position 1 = 72, Position 2 = 74
Branch analysis from position: 72
Branch analysis from position: 74
Branch analysis from position: 48
2 jumps found. (Code = 43) Position 1 = 57, Position 2 = 59
Branch analysis from position: 57
Branch analysis from position: 59
Branch analysis from position: 36
2 jumps found. (Code = 43) Position 1 = 46, Position 2 = 48
Branch analysis from position: 46
Branch analysis from position: 48
Branch analysis from position: 25
2 jumps found. (Code = 43) Position 1 = 34, Position 2 = 36
Branch analysis from position: 34
Branch analysis from position: 36
Branch analysis from position: 14
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
Branch analysis from position: 25
filename:       /in/2ZeUa
function name:  (null)
number of ops:  88
compiled vars:  !0 = $object, !1 = $object2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   DECLARE_CLASS                                            'baseclass'
    9     1        DECLARE_CLASS                                            'myclass', 'baseclass'
   12     2        NEW                                              $2      'MyClass'
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !0, $2
   14     5        BEGIN_SILENCE                                    ~5      
          6        INIT_FCALL                                               'is_subclass_of'
          7        SEND_VAL                                                 'BaseClass'
          8        SEND_VAL                                                 'BaseClass'
          9        DO_ICALL                                         $6      
         10        END_SILENCE                                              ~5
         11      > JMPZ                                                     $6, ->14
         12    >   QM_ASSIGN                                        ~7      'Yes+'
         13      > JMP                                                      ->15
         14    >   QM_ASSIGN                                        ~7      'No+'
         15    >   ECHO                                                     ~7
   15    16        BEGIN_SILENCE                                    ~8      
         17        INIT_FCALL                                               'is_subclass_of'
         18        SEND_VAL                                                 'MyClass'
         19        SEND_VAL                                                 'BaseClass'
         20        DO_ICALL                                         $9      
         21        END_SILENCE                                              ~8
         22      > JMPZ                                                     $9, ->25
         23    >   QM_ASSIGN                                        ~10     'Yes+'
         24      > JMP                                                      ->26
         25    >   QM_ASSIGN                                        ~10     'No+'
         26    >   ECHO                                                     ~10
   16    27        BEGIN_SILENCE                                    ~11     
         28        INIT_FCALL                                               'is_subclass_of'
         29        SEND_VAL                                                 'MyClass'
         30        SEND_VAL                                                 'MyInterface'
         31        DO_ICALL                                         $12     
         32        END_SILENCE                                              ~11
         33      > JMPZ                                                     $12, ->36
         34    >   QM_ASSIGN                                        ~13     'Yes+'
         35      > JMP                                                      ->37
         36    >   QM_ASSIGN                                        ~13     'No+'
         37    >   ECHO                                                     ~13
   17    38        ECHO                                                     '%0A'
   18    39        BEGIN_SILENCE                                    ~14     
         40        INIT_FCALL                                               'is_subclass_of'
         41        SEND_VAR                                                 !0
         42        SEND_VAL                                                 'BaseClass'
         43        DO_ICALL                                         $15     
         44        END_SILENCE                                              ~14
         45      > JMPZ                                                     $15, ->48
         46    >   QM_ASSIGN                                        ~16     'Yes+'
         47      > JMP                                                      ->49
         48    >   QM_ASSIGN                                        ~16     'No+'
         49    >   ECHO                                                     ~16
   19    50        BEGIN_SILENCE                                    ~17     
         51        INIT_FCALL                                               'is_subclass_of'
         52        SEND_VAR                                                 !0
         53        SEND_VAL                                                 'MyInterface'
         54        DO_ICALL                                         $18     
         55        END_SILENCE                                              ~17
         56      > JMPZ                                                     $18, ->59
         57    >   QM_ASSIGN                                        ~19     'Yes+'
         58      > JMP                                                      ->60
         59    >   QM_ASSIGN                                        ~19     'No+'
         60    >   ECHO                                                     ~19
   21    61        NEW                                              $20     'myclass'
         62        DO_FCALL                                      0          
         63        ASSIGN                                                   !1, $20
   22    64        ECHO                                                     '%0A'
   23    65        BEGIN_SILENCE                                    ~23     
         66        INIT_FCALL                                               'is_subclass_of'
         67        SEND_VAR                                                 !1
         68        SEND_VAL                                                 'BaseClass'
         69        DO_ICALL                                         $24     
         70        END_SILENCE                                              ~23
         71      > JMPZ                                                     $24, ->74
         72    >   QM_ASSIGN                                        ~25     'Yes+'
         73      > JMP                                                      ->75
         74    >   QM_ASSIGN                                        ~25     'No+'
         75    >   ECHO                                                     ~25
   24    76        BEGIN_SILENCE                                    ~26     
         77        INIT_FCALL                                               'is_subclass_of'
         78        SEND_VAR                                                 !1
         79        SEND_VAL                                                 'MyInterface'
         80        DO_ICALL                                         $27     
         81        END_SILENCE                                              ~26
         82      > JMPZ                                                     $27, ->85
         83    >   QM_ASSIGN                                        ~28     'Yes+'
         84      > JMP                                                      ->86
         85    >   QM_ASSIGN                                        ~28     'No+'
         86    >   ECHO                                                     ~28
         87      > RETURN                                                   1

Class MyInterface: [no user functions]
Class BaseClass: [no user functions]
Class MyClass: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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