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<?php if (preg_match('/\bABČĎ\b/ui', 'ABČĎ')) echo 'OK'; else echo 'KO';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/s4tHF
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   FRAMELESS_ICALL_2                preg_match          ~0      '%2F%5CbAB%C4%8C%C4%8E%5Cb%2Fui', 'AB%C4%8C%C4%8E'
          1      > JMPZ                                                         ~0, ->4
          2    >   ECHO                                                         'OK'
          3      > JMP                                                          ->5
    3     4    >   ECHO                                                         'KO'
          5    > > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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171.2 ms | 3252 KiB | 15 Q