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<?php $UUID = "f9e113324bd449809b98b0925eac3141"; echo preg_replace('/(?:^.{4})?.{4}\K/', '-', $UUID, 4);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pbHFn
function name:  (null)
number of ops:  9
compiled vars:  !0 = $UUID
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'f9e113324bd449809b98b0925eac3141'
    5     1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%2F%28%3F%3A%5E.%7B4%7D%29%3F.%7B4%7D%5CK%2F'
          3        SEND_VAL                                                 '-'
          4        SEND_VAR                                                 !0
          5        SEND_VAL                                                 4
          6        DO_ICALL                                         $2      
          7        ECHO                                                     $2
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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