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<?php $str = 'asd' . chr(0x20) . ' ' . chr(0x19) . chr(0x00) . 'dfйврцгврйшцвльялдстячсхйхзцлсщзщцгснйцмсйоцстировфдлыовлйхзлцвщтйцТШЫНФИВГШОЙТЦИВ'; var_dump($str); $str = preg_replace('/[\x00-\x19\x7f]/', '', $str); var_dump($str);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mvQM3
function name:  (null)
number of ops:  14
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'asd+++%19%00df%D0%B9%D0%B2%D1%80%D1%86%D0%B3%D0%B2%D1%80%D0%B9%D1%88%D1%86%D0%B2%D0%BB%D1%8C%D1%8F%D0%BB%D0%B4%D1%81%D1%82%D1%8F%D1%87%D1%81%D1%85%D0%B9%D1%85%D0%B7%D1%86%D0%BB%D1%81%D1%89%D0%B7%D1%89%D1%86%D0%B3%D1%81%D0%BD%D0%B9%D1%86%D0%BC%D1%81%D0%B9%D0%BE%D1%86%D1%81%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D1%84%D0%B4%D0%BB%D1%8B%D0%BE%D0%B2%D0%BB%D0%B9%D1%85%D0%B7%D0%BB%D1%86%D0%B2%D1%89%D1%82%D0%B9%D1%86%D0%A2%D0%A8%D0%AB%D0%9D%D0%A4%D0%98%D0%92%D0%93%D0%A8%D0%9E%D0%99%D0%A2%D0%A6%D0%98%D0%92'
    3     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'preg_replace'
          5        SEND_VAL                                                 '%2F%5B%5Cx00-%5Cx19%5Cx7f%5D%2F'
          6        SEND_VAL                                                 ''
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                         $3      
          9        ASSIGN                                                   !0, $3
    5    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !0
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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