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<?php $obj = new stdClass(); $obj->bar = "xyz"; $data = array("foo" => "bar"); $key = "foo"; $obj->${'data'[$key]}; // Syntax error $obj->{$data[$key]}; // Works $obj->${'key'}; // E_NOTICE. Does not work $obj->{$key}; // Works
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/SD2cC
function name:  (null)
number of ops:  19
compiled vars:  !0 = $obj, !1 = $data, !2 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $3      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
    3     3        ASSIGN_OBJ                                               !0, 'bar'
          4        OP_DATA                                                  'xyz'
    4     5        ASSIGN                                                   !1, <array>
    5     6        ASSIGN                                                   !2, 'foo'
    7     7        FETCH_DIM_R                                      ~9      'data', !2
          8        FETCH_R                      local               ~10     ~9
          9        FETCH_OBJ_R                                      ~11     !0, ~10
         10        FREE                                                     ~11
    8    11        FETCH_DIM_R                                      ~12     !1, !2
         12        FETCH_OBJ_R                                      ~13     !0, ~12
         13        FREE                                                     ~13
   10    14        FETCH_OBJ_R                                      ~14     !0, !2
         15        FREE                                                     ~14
   11    16        FETCH_OBJ_R                                      ~15     !0, !2
         17        FREE                                                     ~15
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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