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<?php const DEFAULT_VALUE = null; function foo(\stdClass $arg = DEFAULT_VALUE) { var_dump($arg); } var_dump((new ReflectionFunction('foo'))->getParameters()[0]->getDefaultValue()); foo(null);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/R8WYD
function name:  (null)
number of ops:  16
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   DECLARE_CONST                                                'DEFAULT_VALUE', null
   10     1        INIT_FCALL                                                   'var_dump'
          2        NEW                                                  $0      'ReflectionFunction'
          3        SEND_VAL_EX                                                  'foo'
          4        DO_FCALL                                          0          
          5        INIT_METHOD_CALL                                             $0, 'getParameters'
          6        DO_FCALL                                          0  $2      
          7        FETCH_DIM_R                                          ~3      $2, 0
          8        INIT_METHOD_CALL                                             ~3, 'getDefaultValue'
          9        DO_FCALL                                          0  $4      
         10        SEND_VAR                                                     $4
         11        DO_ICALL                                                     
   11    12        INIT_FCALL                                                   'foo'
         13        SEND_VAL                                                     null
         14        DO_FCALL                                          0          
         15      > RETURN                                                       1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/R8WYD
function name:  foo
number of ops:  5
compiled vars:  !0 = $arg
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   RECV_INIT                                            !0      <const ast>
    7     1        INIT_FCALL                                                   'var_dump'
          2        SEND_VAR                                                     !0
          3        DO_ICALL                                                     
    8     4      > RETURN                                                       null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.5.0


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