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<?php class A { public function f(): static { } } var_dump((new ReflectionMethod('A', 'f'))->getReturnType()->isBuiltin());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9pBvi
function name:  (null)
number of ops:  12
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   10     0  E >   INIT_FCALL                                                   'var_dump'
          1        NEW                                                  $0      'ReflectionMethod'
          2        SEND_VAL_EX                                                  'A'
          3        SEND_VAL_EX                                                  'f'
          4        DO_FCALL                                          0          
          5        INIT_METHOD_CALL                                             $0, 'getReturnType'
          6        DO_FCALL                                          0  $2      
          7        INIT_METHOD_CALL                                             $2, 'isBuiltin'
          8        DO_FCALL                                          0  $3      
          9        SEND_VAR                                                     $3
         10        DO_ICALL                                                     
         11      > RETURN                                                       1

Class A:
Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9pBvi
function name:  f
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 f

End of class A.

Generated using Vulcan Logic Dumper, using php 8.5.0


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