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<?php function foo($aaa):?object { return '1aaa'; } var_dump(foo(new StdClass));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vZCkr
function name:  (null)
number of ops:  9
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'foo'
          2        NEW                                              $0      'StdClass'
          3        DO_FCALL                                      0          
          4        SEND_VAR                                                 $0
          5        DO_FCALL                                      0  $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vZCkr
function name:  foo
number of ops:  5
compiled vars:  !0 = $aaa
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    3     1        VERIFY_RETURN_TYPE                               ~1      '1aaa'
          2      > RETURN                                                   ~1
    4     3*       VERIFY_RETURN_TYPE                                       
          4*     > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


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