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<?php $var = '_POST'; $$var =& $var; function scope () {var_dump($_POST);} scope();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/6siI3
function name:  (null)
number of ops:  6
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '_POST'
    5     1        FETCH_W                      local               $2      !0
          2        ASSIGN_REF                                               $2, !0
    7     3        INIT_FCALL                                               'scope'
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Function scope:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/6siI3
function name:  scope
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_FCALL                                               'var_dump'
          1        FETCH_R                      global              ~0      '_POST'
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
          4      > RETURN                                                   null

End of function scope

Generated using Vulcan Logic Dumper, using php 8.0.0


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