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<?php $str = 'FFFFRRFFFFFFFPPRRRRRRLLRLLRLLLPPFPPLPPLPPLFPPFFPFLRPFFRRLLRPFPRFFFFFFFLFDRRFRRFFFFFFFFRQEE'; $res = preg_split('/([PDQE])(?:.*\1)?/', $str); print_r($res);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/R9TnA
function name:  (null)
number of ops:  10
compiled vars:  !0 = $str, !1 = $res
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'FFFFRRFFFFFFFPPRRRRRRLLRLLRLLLPPFPPLPPLPPLFPPFFPFLRPFFRRLLRPFPRFFFFFFFLFDRRFRRFFFFFFFFRQEE'
    5     1        INIT_FCALL                                                   'preg_split'
          2        SEND_VAL                                                     '%2F%28%5BPDQE%5D%29%28%3F%3A.%2A%5C1%29%3F%2F'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                             $3      
          5        ASSIGN                                                       !1, $3
    7     6        INIT_FCALL                                                   'print_r'
          7        SEND_VAR                                                     !1
          8        DO_ICALL                                                     
          9      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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