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<?php interface OldInterface { public function foo(); } interface NewInterface { public function foo(): mixed; } final class MyClass implements OldInterface, NewInterface { public function foo(): mixed { return null; } } $c = new MyClass(); $c->foo();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eScGI
function name:  (null)
number of ops:  7
compiled vars:  !0 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   DECLARE_CLASS                                            'myclass'
   16     1        NEW                                              $1      'MyClass'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
   17     4        INIT_METHOD_CALL                                         !0, 'foo'
          5        DO_FCALL                                      0          
          6      > RETURN                                                   1

Class OldInterface:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eScGI
function name:  foo
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E > > RETURN                                                   null

End of function foo

End of class OldInterface.

Class NewInterface:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eScGI
function name:  foo
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   VERIFY_RETURN_TYPE                                       
          1      > RETURN                                                   null

End of function foo

End of class NewInterface.

Class MyClass:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eScGI
function name:  foo
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E > > RETURN                                                   null
          1*       VERIFY_RETURN_TYPE                                       
          2*     > RETURN                                                   null

End of function foo

End of class MyClass.

Generated using Vulcan Logic Dumper, using php 8.0.0


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