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<?php class A{ } class B extends A { } function GiveA () : A { return new B(); } print_r(GiveA());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KMmKM
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   INIT_FCALL                                               'print_r'
          1        INIT_FCALL                                               'givea'
          2        DO_FCALL                                      0  $0      
          3        SEND_VAR                                                 $0
          4        DO_ICALL                                                 
          5      > RETURN                                                   1

Function givea:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KMmKM
function name:  GiveA
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   NEW                                              $0      'B'
          1        DO_FCALL                                      0          
          2        VERIFY_RETURN_TYPE                                       $0
          3      > RETURN                                                   $0
   12     4*       VERIFY_RETURN_TYPE                                       
          5*     > RETURN                                                   null

End of function givea

Class A: [no user functions]
Class B: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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