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<?php function scope () { $var = '_POST'; var_dump(isset($$var)); } scope();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2ZKa1
function name:  (null)
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   INIT_FCALL                                               'scope'
          1        DO_FCALL                                      0          
          2      > RETURN                                                   1

Function scope:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2ZKa1
function name:  scope
number of ops:  6
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, '_POST'
    5     1        INIT_FCALL                                               'var_dump'
          2        ISSET_ISEMPTY_VAR                             4  ~2      !0
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                                 
    6     5      > RETURN                                                   null

End of function scope

Generated using Vulcan Logic Dumper, using php 8.0.0


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