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<?php ${''} = ok; echo ${''};
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7CpAA
function name:  (null)
number of ops:  4
compiled vars:  !0 = $
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   FETCH_CONSTANT                                   ~1      'ok'
          1        ASSIGN                                                   !0, ~1
    4     2        ECHO                                                     !0
          3      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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