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<?php $contents=chr(2).chr(2).chr(2)."122222234567890vwxyz".chr(3).chr(3).chr(3); var_dump(preg_match_all('/([\x00-\x09])\1{2,}/', $contents,$res)); var_dump($res); die();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/DdvI7
function name:  (null)
number of ops:  14
compiled vars:  !0 = $contents, !1 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%02%02%02122222234567890vwxyz%03%03%03'
    4     1        INIT_FCALL                                               'var_dump'
          2        INIT_FCALL                                               'preg_match_all'
          3        SEND_VAL                                                 '%2F%28%5B%5Cx00-%5Cx09%5D%29%5C1%7B2%2C%7D%2F'
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !1
          6        DO_ICALL                                         $3      
          7        SEND_VAR                                                 $3
          8        DO_ICALL                                                 
    5     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !1
         11        DO_ICALL                                                 
    6    12      > EXIT                                                     
         13*     > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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