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<?php $a = ["úù" => "u"]; echo preg_match('/['. $k . ']/', $v, 'olocú');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1LWGZ
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a, !1 = $k, !2 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'preg_match'
          2        CONCAT                                           ~4      '%2F%5B', !1
          3        CONCAT                                           ~5      ~4, '%5D%2F'
          4        SEND_VAL                                                 ~5
          5        SEND_VAR                                                 !2
          6        SEND_VAL_EX                                              'oloc%C3%BA'
          7        DO_ICALL                                         $6      
          8        ECHO                                                     $6
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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