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<?php $ip = '192.168.0.1'; $octets = explode('.', $ip); var_dump($octets); foreach($octets as $key => $octet) { (255 - (int) $octet) < 0 ? $valid = false : $valid = true; if ($valid) echo 'valid'; else echo 'invalid'; echo PHP_EOL; } var_dump($octets);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 10, Position 2 = 28
Branch analysis from position: 10
2 jumps found. (Code = 78) Position 1 = 11, Position 2 = 28
Branch analysis from position: 11
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 19
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 21
Branch analysis from position: 21
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 25
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 19
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
Branch analysis from position: 25
Branch analysis from position: 28
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 28
filename:       /in/WH0jE
function name:  (null)
number of ops:  33
compiled vars:  !0 = $ip, !1 = $octets, !2 = $octet, !3 = $key, !4 = $valid
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '192.168.0.1'
    5     1        INIT_FCALL                                               'explode'
          2        SEND_VAL                                                 '.'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $6      
          5        ASSIGN                                                   !1, $6
    7     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
    9     9      > FE_RESET_R                                       $9      !1, ->28
         10    > > FE_FETCH_R                                       ~10     $9, !2, ->28
         11    >   ASSIGN                                                   !3, ~10
   11    12        CAST                                          4  ~12     !2
         13        SUB                                              ~13     255, ~12
         14        IS_SMALLER                                               ~13, 0
         15      > JMPZ                                                     ~14, ->19
         16    >   ASSIGN                                           ~15     !4, <false>
         17        QM_ASSIGN                                        ~16     ~15
         18      > JMP                                                      ->21
         19    >   ASSIGN                                           ~17     !4, <true>
         20        QM_ASSIGN                                        ~16     ~17
         21    >   FREE                                                     ~16
   13    22      > JMPZ                                                     !4, ->25
   14    23    >   ECHO                                                     'valid'
         24      > JMP                                                      ->26
   16    25    >   ECHO                                                     'invalid'
   18    26    >   ECHO                                                     '%0A'
    9    27      > JMP                                                      ->10
         28    >   FE_FREE                                                  $9
   21    29        INIT_FCALL                                               'var_dump'
         30        SEND_VAR                                                 !1
         31        DO_ICALL                                                 
         32      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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