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<?php declare(strict_types=1); class Foo {}; function takesFoo(Foo $foo = null) { var_dump($foo); } takesFoo(new Foo); takesFoo(); takesFoo(null);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/X7Cge
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                               'takesfoo'
          1        NEW                                              $0      'Foo'
          2        DO_FCALL                                      0          
          3        SEND_VAR                                                 $0
          4        DO_FCALL                                      0          
   12     5        INIT_FCALL                                               'takesfoo'
          6        DO_FCALL                                      0          
   13     7        INIT_FCALL                                               'takesfoo'
          8        SEND_VAL                                                 null
          9        DO_FCALL                                      0          
         10      > RETURN                                                   1

Function takesfoo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/X7Cge
function name:  takesFoo
number of ops:  5
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV_INIT                                        !0      null
    8     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
    9     4      > RETURN                                                   null

End of function takesfoo

Class Foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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