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<?php interface Foo { public function bar(); } class Baz implements Foo { public function bar($args = null ) { var_dump('määäh'); } } $baz = new Baz; $baz->bar();
based on 001C5
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/evf92
function name:  (null)
number of ops:  10
compiled vars:  !0 = $baz
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   NOP                                                      
   8     1        DECLARE_CLASS                                    $2      'baz'
         2        ADD_INTERFACE                                            $2, 'Foo'
         3        VERIFY_ABSTRACT_CLASS                                    $2
  14     4        NEW                                              $3      :-1
         5        DO_FCALL                                      0          
         6        ASSIGN                                                   !0, $3
  15     7        INIT_METHOD_CALL                                         !0, 'bar'
         8        DO_FCALL                                      0          
         9      > RETURN                                                   1

Class Foo:
Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/evf92
function name:  bar
number of ops:  1
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   4     0  E > > RETURN                                                   null

End of function bar

End of class Foo.

Class Baz:
Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/evf92
function name:  bar
number of ops:  5
compiled vars:  !0 = $args
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   9     0  E >   RECV_INIT                                        !0      null
  10     1        INIT_FCALL                                               'var_dump'
         2        SEND_VAL                                                 'm%C3%A4%C3%A4%C3%A4h'
         3        DO_ICALL                                                 
  11     4      > RETURN                                                   null

End of function bar

End of class Baz.

Generated using Vulcan Logic Dumper, using php 7.3.0