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<?php $a = new stdClass(); $a->list = array(); $b = new stdClass(); $b->field = 5; $a->list = array( 1 => $b ); print_r($a); $param = 'list'; $id = 1; print_r($a->list[1]->field); echo "\n"; print_r($a->{$param}[$id]->field);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UPiRL
function name:  (null)
number of ops:  32
compiled vars:  !0 = $a, !1 = $b, !2 = $param, !3 = $id
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $4      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $4
    4     3        ASSIGN_OBJ                                               !0, 'list'
          4        OP_DATA                                                  <array>
    5     5        NEW                                              $8      'stdClass'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $8
    6     8        ASSIGN_OBJ                                               !1, 'field'
          9        OP_DATA                                                  5
    8    10        INIT_ARRAY                                       ~13     !1, 1
    7    11        ASSIGN_OBJ                                               !0, 'list'
    8    12        OP_DATA                                                  ~13
   11    13        INIT_FCALL                                               'print_r'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                                 
   12    16        ASSIGN                                                   !2, 'list'
   13    17        ASSIGN                                                   !3, 1
   14    18        INIT_FCALL                                               'print_r'
         19        FETCH_OBJ_R                                      ~17     !0, 'list'
         20        FETCH_DIM_R                                      ~18     ~17, 1
         21        FETCH_OBJ_R                                      ~19     ~18, 'field'
         22        SEND_VAL                                                 ~19
         23        DO_ICALL                                                 
   15    24        ECHO                                                     '%0A'
   16    25        INIT_FCALL                                               'print_r'
         26        FETCH_OBJ_R                                      ~21     !0, !2
         27        FETCH_DIM_R                                      ~22     ~21, !3
         28        FETCH_OBJ_R                                      ~23     ~22, 'field'
         29        SEND_VAL                                                 ~23
         30        DO_ICALL                                                 
         31      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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