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<?php class A { public function foo( $foo ) { var_dump( func_get_args() ); } } class B extends A { public function foo( $foo ) { $args = func_get_args(); call_user_func_array( array( $this, 'parent::foo' ), $args ); } } $b = new B(); $b->foo( 'a', 'b', 'c' );
based on ORBWl
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/15dEY
function name:  (null)
number of ops:  9
compiled vars:  !0 = $b
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
  16     0  E >   NEW                                              $1      :13
         1        DO_FCALL                                      0          
         2        QM_ASSIGN                                                !0
  17     3        INIT_METHOD_CALL                                         !0, 'foo'
         4        SEND_VAL_EX                                              'a'
         5        SEND_VAL_EX                                              'b'
         6        SEND_VAL_EX                                              'c'
         7        DO_FCALL                                      0          
         8      > RETURN                                                   1

Class A:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/15dEY
function name:  foo
number of ops:  6
compiled vars:  !0 = $foo
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   4     0  E >   RECV                                             !0      
   5     1        INIT_FCALL                                               'var_dump'
         2        DECLARE_ANON_INHERITED_CLASS                     :1      
         3        SEND_VAL                                                 ~1
         4        DO_ICALL                                                 
   6     5      > RETURN                                                   null

End of function foo

End of class A.

Class B:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/15dEY
function name:  foo
number of ops:  10
compiled vars:  !0 = $foo, !1 = $args
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
  10     0  E >   RECV                                             !0      
  11     1        DECLARE_ANON_INHERITED_CLASS                     :2      
         2        QM_ASSIGN                                                !1
  12     3        FETCH_THIS                                       ~4      
         4        INIT_ARRAY                                       ~5      ~4
         5        ADD_ARRAY_ELEMENT                                ~5      'parent%3A%3Afoo'
         6        INIT_USER_CALL                                0          'call_user_func_array', ~5
         7        SEND_ARRAY                                               !1
         8        DO_FCALL                                      0          
  13     9      > RETURN                                                   null

End of function foo

End of class B.

Generated using Vulcan Logic Dumper, using php 7.4.0