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<?php class Foo { public function add($val = 0) { $this->stuff[] = $val; } } $x = new Foo(); $x->add(42); echo serialize($x) . "\n"; var_dump($x); echo "\n\n"; class Bar { private $stuff = []; public function add($x = 0) { $this->stuff[] = $x; } } $x = new Bar(); $x->add(42); echo serialize($x) . "\n"; var_dump($x);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/fCs2s
function name:  (null)
number of ops:  30
compiled vars:  !0 = $x
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   NEW                                                  $1      'Foo'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
   10     3        INIT_METHOD_CALL                                             !0, 'add'
          4        SEND_VAL_EX                                                  42
          5        DO_FCALL                                          0          
   11     6        INIT_FCALL                                                   'serialize'
          7        SEND_VAR                                                     !0
          8        DO_ICALL                                             $5      
          9        CONCAT                                               ~6      $5, '%0A'
         10        ECHO                                                         ~6
   12    11        INIT_FCALL                                                   'var_dump'
         12        SEND_VAR                                                     !0
         13        DO_ICALL                                                     
   14    14        ECHO                                                         '%0A%0A'
   23    15        NEW                                                  $8      'Bar'
         16        DO_FCALL                                          0          
         17        ASSIGN                                                       !0, $8
   24    18        INIT_METHOD_CALL                                             !0, 'add'
         19        SEND_VAL_EX                                                  42
         20        DO_FCALL                                          0          
   25    21        INIT_FCALL                                                   'serialize'
         22        SEND_VAR                                                     !0
         23        DO_ICALL                                             $12     
         24        CONCAT                                               ~13     $12, '%0A'
         25        ECHO                                                         ~13
   26    26        INIT_FCALL                                                   'var_dump'
         27        SEND_VAR                                                     !0
         28        DO_ICALL                                                     
         29      > RETURN                                                       1

Class Foo:
Function add:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/fCs2s
function name:  add
number of ops:  5
compiled vars:  !0 = $val
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   RECV_INIT                                            !0      0
    5     1        FETCH_OBJ_W                                          $1      'stuff'
          2        ASSIGN_DIM                                                   $1
          3        OP_DATA                                                      !0
    6     4      > RETURN                                                       null

End of function add

End of class Foo.

Class Bar:
Function add:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/fCs2s
function name:  add
number of ops:  5
compiled vars:  !0 = $x
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   18     0  E >   RECV_INIT                                            !0      0
   19     1        FETCH_OBJ_W                                          $1      'stuff'
          2        ASSIGN_DIM                                                   $1
          3        OP_DATA                                                      !0
   20     4      > RETURN                                                       null

End of function add

End of class Bar.

Generated using Vulcan Logic Dumper, using php 8.5.0


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