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<?php class A { function foo(): B {} } class B extends A { function foo(): C {} } class C extends B { function foo(): C {} }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1hlDL
function name:  (null)
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   DECLARE_CLASS                                            'b', 'a'
    8     1        DECLARE_CLASS                                            'c', 'b'
   10     2      > RETURN                                                   1

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

End of function foo

End of class A.

Class B:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1hlDL
function name:  foo
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   VERIFY_RETURN_TYPE                                       
          1      > RETURN                                                   null

End of function foo

End of class B.

Class C:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1hlDL
function name:  foo
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   VERIFY_RETURN_TYPE                                       
          1      > RETURN                                                   null

End of function foo

End of class C.

Generated using Vulcan Logic Dumper, using php 8.0.0


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