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<?php $code='a.txt'; ('?>' . $code);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BnUvG
function name:  (null)
number of ops:  4
compiled vars:  !0 = $code
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'a.txt'
    3     1        CONCAT                                           ~2      '%3F%3E', !0
          2        FREE                                                     ~2
          3      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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