3v4l.org

run code in 500+ PHP versions simultaneously
<?php class my_class { private $data; public $var1; public $var2; public $var3; public function __construct() { $this->data = new stdClass; $this->data->var1 = 'a'; $this->data->var2 = 'b'; $this->data->var3 = 'c'; $this->var1 = &$this->data->var1; $this->var2 = &$this->data->var2; $this->var3 = &$this->data->var3; } } $original = new my_class; $new = clone $original; $new->var3 = 'd'; // Output Should Be "c" echo $original->var3;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nm6NW
function name:  (null)
number of ops:  10
compiled vars:  !0 = $original, !1 = $new
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   27     0  E >   NEW                                                  $2      'my_class'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $2
   28     3        CLONE                                                ~5      !0
          4        ASSIGN                                                       !1, ~5
   29     5        ASSIGN_OBJ                                                   !1, 'var3'
          6        OP_DATA                                                      'd'
   32     7        FETCH_OBJ_R                                          ~8      !0, 'var3'
          8        ECHO                                                         ~8
          9      > RETURN                                                       1

Class my_class:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nm6NW
function name:  __construct
number of ops:  29
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   14     0  E >   NEW                                                  $1      'stdClass'
          1        DO_FCALL                                          0          
          2        ASSIGN_OBJ                                                   'data'
          3        OP_DATA                                                      $1
   16     4        FETCH_OBJ_W                                          $3      'data'
          5        ASSIGN_OBJ                                                   $3, 'var1'
          6        OP_DATA                                                      'a'
   17     7        FETCH_OBJ_W                                          $5      'data'
          8        ASSIGN_OBJ                                                   $5, 'var2'
          9        OP_DATA                                                      'b'
   18    10        FETCH_OBJ_W                                          $7      'data'
         11        ASSIGN_OBJ                                                   $7, 'var3'
         12        OP_DATA                                                      'c'
   20    13        FETCH_OBJ_W                                          $10     'data'
         14        FETCH_OBJ_W                                          $11     $10, 'var1'
         15        MAKE_REF                                             $12     $11
         16        ASSIGN_OBJ_REF                                               'var1'
         17        OP_DATA                                                      $12
   21    18        FETCH_OBJ_W                                          $14     'data'
         19        FETCH_OBJ_W                                          $15     $14, 'var2'
         20        MAKE_REF                                             $16     $15
         21        ASSIGN_OBJ_REF                                               'var2'
         22        OP_DATA                                                      $16
   22    23        FETCH_OBJ_W                                          $18     'data'
         24        FETCH_OBJ_W                                          $19     $18, 'var3'
         25        MAKE_REF                                             $20     $19
         26        ASSIGN_OBJ_REF                                               'var3'
         27        OP_DATA                                                      $20
   23    28      > RETURN                                                       null

End of function __construct

End of class my_class.

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
219.69 ms | 2803 KiB | 13 Q