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<?php function foo(string $param = null) { var_dump($param); } function bar(\Foo\Bar|\Foo\Baz $param = null) { var_dump($param); } foo(null); bar(null);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iBlne
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'foo'
          1        SEND_VAL                                                 null
          2        DO_FCALL                                      0          
    6     3        INIT_FCALL                                               'bar'
          4        SEND_VAL                                                 null
          5        DO_FCALL                                      0          
          6      > RETURN                                                   1

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

End of function foo

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

End of function bar

Generated using Vulcan Logic Dumper, using php 8.0.0


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