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<?php $string = 'test' . chr(0) . "\n" . 'Test' . "\r\n"; $result = mb_ereg_replace('(.*(\0)|(\r)|(\n)|(\r\n).*)', '\\\1', $string); var_dump($result);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TNS5i
function name:  (null)
number of ops:  11
compiled vars:  !0 = $string, !1 = $result
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'test%00%0ATest%0D%0A'
    3     1        INIT_FCALL                                               'mb_ereg_replace'
          2        SEND_VAL                                                 '%28.%2A%28%5C0%29%7C%28%5Cr%29%7C%28%5Cn%29%7C%28%5Cr%5Cn%29.%2A%29'
          3        SEND_VAL                                                 '%5C%5C1'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $3      
          6        ASSIGN                                                   !1, $3
    4     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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