3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function current() { return 5; } } class B {} class C extends A { public function current(): B { return new B(); } } $o = new C; var_dump($o->current());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YHiac
function name:  (null)
number of ops:  9
compiled vars:  !0 = $o
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E >   NEW                                              $1      'C'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   20     3        INIT_FCALL                                               'var_dump'
          4        INIT_METHOD_CALL                                         !0, 'current'
          5        DO_FCALL                                      0  $4      
          6        SEND_VAR                                                 $4
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Class A:
Function current:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YHiac
function name:  current
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E > > RETURN                                                   5
    6     1*     > RETURN                                                   null

End of function current

End of class A.

Class B: [no user functions]
Class C:
Function current:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YHiac
function name:  current
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   NEW                                              $0      'B'
          1        DO_FCALL                                      0          
          2        VERIFY_RETURN_TYPE                                       $0
          3      > RETURN                                                   $0
   15     4*       VERIFY_RETURN_TYPE                                       
          5*     > RETURN                                                   null

End of function current

End of class C.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
198.83 ms | 1395 KiB | 15 Q