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<?php $ip = '192.168.0.1'; $octets = explode('.', $ip); foreach($octets as $key => $octet) { $v = 255 - (int)$octet; ($v + 255 == 255) ? $valid = true : $valid = false; echo $v . PHP_EOL; if ($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 = 7, Position 2 = 29
Branch analysis from position: 7
2 jumps found. (Code = 78) Position 1 = 8, Position 2 = 29
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 15, Position 2 = 18
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 20
Branch analysis from position: 20
2 jumps found. (Code = 43) Position 1 = 24, Position 2 = 26
Branch analysis from position: 24
1 jumps found. (Code = 42) Position 1 = 27
Branch analysis from position: 27
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
Branch analysis from position: 26
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
Branch analysis from position: 18
2 jumps found. (Code = 43) Position 1 = 24, Position 2 = 26
Branch analysis from position: 24
Branch analysis from position: 26
Branch analysis from position: 29
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 29
filename:       /in/v2qhT
function name:  (null)
number of ops:  34
compiled vars:  !0 = $ip, !1 = $octets, !2 = $octet, !3 = $key, !4 = $v, !5 = $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                                         $7      
          5        ASSIGN                                                   !1, $7
    7     6      > FE_RESET_R                                       $9      !1, ->29
          7    > > FE_FETCH_R                                       ~10     $9, !2, ->29
          8    >   ASSIGN                                                   !3, ~10
    8     9        CAST                                          4  ~12     !2
         10        SUB                                              ~13     255, ~12
         11        ASSIGN                                                   !4, ~13
    9    12        ADD                                              ~15     !4, 255
         13        IS_EQUAL                                                 ~15, 255
         14      > JMPZ                                                     ~16, ->18
         15    >   ASSIGN                                           ~17     !5, <true>
         16        QM_ASSIGN                                        ~18     ~17
         17      > JMP                                                      ->20
         18    >   ASSIGN                                           ~19     !5, <false>
         19        QM_ASSIGN                                        ~18     ~19
         20    >   FREE                                                     ~18
   11    21        CONCAT                                           ~20     !4, '%0A'
         22        ECHO                                                     ~20
   13    23      > JMPZ                                                     !5, ->26
   14    24    >   ECHO                                                     'valid'
         25      > JMP                                                      ->27
   16    26    >   ECHO                                                     'invalid'
   18    27    >   ECHO                                                     '%0A'
    7    28      > JMP                                                      ->7
         29    >   FE_FREE                                                  $9
   21    30        INIT_FCALL                                               'var_dump'
         31        SEND_VAR                                                 !1
         32        DO_ICALL                                                 
         33      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.5 ms | 1400 KiB | 17 Q