3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function doFoo() { return $this->foo(); } private function foo() { return __CLASS__ . '::foo'; } } class B extends A { private function foo() { return __CLASS__ . '::foo (overwritten)'; } } $b = new B; var_dump($b->doFoo());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RE79i
function name:  (null)
number of ops:  9
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   NEW                                              $1      'B'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    7     3        INIT_FCALL                                               'var_dump'
          4        INIT_METHOD_CALL                                         !0, 'doFoo'
          5        DO_FCALL                                      0  $4      
          6        SEND_VAR                                                 $4
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Class A:
Function dofoo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RE79i
function name:  doFoo
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_METHOD_CALL                                         'foo'
          1        DO_FCALL                                      0  $0      
          2      > RETURN                                                   $0
          3*     > RETURN                                                   null

End of function dofoo

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RE79i
function name:  foo
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
          0  E > > RETURN                                                   'A%3A%3Afoo'
          1*     > 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/RE79i
function name:  foo
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E > > RETURN                                                   'B%3A%3Afoo+%28overwritten%29'
          1*     > RETURN                                                   null

End of function foo

Function dofoo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RE79i
function name:  doFoo
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_METHOD_CALL                                         'foo'
          1        DO_FCALL                                      0  $0      
          2      > RETURN                                                   $0
          3*     > RETURN                                                   null

End of function dofoo

End of class B.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.78 ms | 1396 KiB | 15 Q