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<?php class User { public $address; } class Address { public $street; } $address = new Address(); $address->street = 'Street'; $user = new User(); $user->address = $address; $user2 = new User(); echo $user->address->street ?? ''; echo $user2->address->street ?? ''; var_dump(isset($user->address->street->number->etc));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QoFkr
function name:  (null)
number of ops:  31
compiled vars:  !0 = $address, !1 = $user, !2 = $user2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   NEW                                              $3      'Address'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
   14     3        ASSIGN_OBJ                                               !0, 'street'
          4        OP_DATA                                                  'Street'
   16     5        NEW                                              $7      'User'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $7
   17     8        ASSIGN_OBJ                                               !1, 'address'
          9        OP_DATA                                                  !0
   19    10        NEW                                              $11     'User'
         11        DO_FCALL                                      0          
         12        ASSIGN                                                   !2, $11
   21    13        FETCH_OBJ_IS                                     ~14     !1, 'address'
         14        FETCH_OBJ_IS                                     ~15     ~14, 'street'
         15        COALESCE                                         ~16     ~15
         16        QM_ASSIGN                                        ~16     ''
         17        ECHO                                                     ~16
   22    18        FETCH_OBJ_IS                                     ~17     !2, 'address'
         19        FETCH_OBJ_IS                                     ~18     ~17, 'street'
         20        COALESCE                                         ~19     ~18
         21        QM_ASSIGN                                        ~19     ''
         22        ECHO                                                     ~19
   24    23        INIT_FCALL                                               'var_dump'
         24        FETCH_OBJ_IS                                     ~20     !1, 'address'
         25        FETCH_OBJ_IS                                     ~21     ~20, 'street'
         26        FETCH_OBJ_IS                                     ~22     ~21, 'number'
         27        ISSET_ISEMPTY_PROP_OBJ                           ~23     ~22, 'etc'
         28        SEND_VAL                                                 ~23
         29        DO_ICALL                                                 
         30      > RETURN                                                   1

Class User: [no user functions]
Class Address: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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