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<?php preg_match_all( '/[\p{Cyrillic}]/u', "ZАiKS, со wаrtо wiеdziеć о соvеrааć оdmiеnniе", $matches); echo count($matches); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Ho4ju
function name:  (null)
number of ops:  8
compiled vars:  !0 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                               'preg_match_all'
          1        SEND_VAL                                                 '%2F%5B%5Cp%7BCyrillic%7D%5D%2Fu'
          2        SEND_VAL                                                 'Z%D0%90iKS%2C+%D1%81%D0%BE+w%D0%B0rt%D0%BE+wi%D0%B5dzi%D0%B5%C4%87+%D0%BE+%D1%81%D0%BEv%D0%B5r%D0%B0%D0%B0%C4%87+%D0%BEdmi%D0%B5nni%D0%B5'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                                 
    6     5        COUNT                                            ~2      !0
          6        ECHO                                                     ~2
    9     7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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