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<?php $txt = 'aab bbcdadeeff'; if (preg_match('/([a-z])\1{2,}/s', $txt)) echo 'The string is not valid';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/8mvvr
function name:  (null)
number of ops:  8
compiled vars:  !0 = $txt
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'aab%0Abbcdadeeff'
    5     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%28%5Ba-z%5D%29%5C1%7B2%2C%7D%2Fs'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5      > JMPZ                                                     $2, ->7
    6     6    >   ECHO                                                     'The+string+is+not+valid'
          7    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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