3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $goof; public $c = 'bar'; public function b() { $this->goof->$this->c; } } $a = new A(); $a->goof = $a; $a->b();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3DDYN
function name:  (null)
number of ops:  8
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   NEW                                              $1      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   14     3        ASSIGN_OBJ                                               !0, 'goof'
          4        OP_DATA                                                  !0
   16     5        INIT_METHOD_CALL                                         !0, 'b'
          6        DO_FCALL                                      0          
          7      > RETURN                                                   1

Class A:
Function b:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3DDYN
function name:  b
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   FETCH_THIS                                       ~1      
          1        FETCH_OBJ_R                                      ~0      'goof'
          2        FETCH_OBJ_R                                      ~2      ~0, ~1
          3        FETCH_OBJ_R                                      ~3      ~2, 'c'
          4        FREE                                                     ~3
    9     5      > RETURN                                                   null

End of function b

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
150.04 ms | 1393 KiB | 13 Q