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<?php $obj = new stdClass(); $obj->bar = "xyz"; $data = array("foo" => "bar"); $key = "foo"; // echo $obj->${data[$key]}; syntax error echo $obj->{$data[$key]}; $member = $data[$key]; echo $obj->$member; echo "${data[$key]}"; echo "{$data[$key]}"; class A { static function hello(){ echo "Hello World\n"; } } $y[0] = 'hello'; echo A::${y[0]};
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8mvtY
function name:  (null)
number of ops:  27
compiled vars:  !0 = $obj, !1 = $data, !2 = $key, !3 = $member, !4 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $5      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $5
    4     3        ASSIGN_OBJ                                               !0, 'bar'
          4        OP_DATA                                                  'xyz'
    5     5        ASSIGN                                                   !1, <array>
    6     6        ASSIGN                                                   !2, 'foo'
    8     7        FETCH_DIM_R                                      ~11     !1, !2
          8        FETCH_OBJ_R                                      ~12     !0, ~11
          9        ECHO                                                     ~12
    9    10        FETCH_DIM_R                                      ~13     !1, !2
         11        ASSIGN                                                   !3, ~13
   10    12        FETCH_OBJ_R                                      ~15     !0, !3
         13        ECHO                                                     ~15
   12    14        FETCH_DIM_R                                      ~16     !1, !2
         15        CAST                                          6  ~17     ~16
         16        ECHO                                                     ~17
   13    17        FETCH_DIM_R                                      ~18     !1, !2
         18        CAST                                          6  ~19     ~18
         19        ECHO                                                     ~19
   21    20        ASSIGN_DIM                                               !4, 0
         21        OP_DATA                                                  'hello'
   23    22        FETCH_CONSTANT                                   ~21     'y'
         23        FETCH_DIM_R                                      ~22     ~21, 0
         24        FETCH_STATIC_PROP_R          unknown             ~23     ~22
         25        ECHO                                                     ~23
         26      > RETURN                                                   1

Class A:
Function hello:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8mvtY
function name:  hello
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   ECHO                                                     'Hello+World%0A'
   18     1      > RETURN                                                   null

End of function hello

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


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