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<?php function is_serialized( $data ) { // if it isn't a string, it isn't serialized if ( !is_string( $data ) ) return false; $data = trim( $data ); if ( 'N;' == $data ) return true; if ( !preg_match( '/^([adObis]):/', $data, $badions ) ) return false; switch ( $badions[1] ) { case 'a' : case 'O' : case 's' : if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]\$/s", $data ) ) return true; break; case 'b' : case 'i' : case 'd' : if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;\$/", $data ) ) return true; break; } return false; } echo is_serialized('s:1:"1"');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GXopv
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   27     0  E >   INIT_FCALL                                               'is_serialized'
          1        SEND_VAL                                                 's%3A1%3A%221%22'
          2        DO_FCALL                                      0  $0      
          3        ECHO                                                     $0
          4      > RETURN                                                   1

Function is_serialized:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 5
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 12
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 19, Position 2 = 20
Branch analysis from position: 19
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
8 jumps found. (Code = 188) Position 1 = 35, Position 2 = 35, Position 3 = 35, Position 4 = 47, Position 5 = 47, Position 6 = 47, Position 7 = 59, Position 8 = 22
Branch analysis from position: 35
2 jumps found. (Code = 43) Position 1 = 44, Position 2 = 46
Branch analysis from position: 44
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 59
Branch analysis from position: 59
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 35
Branch analysis from position: 35
Branch analysis from position: 47
2 jumps found. (Code = 43) Position 1 = 56, Position 2 = 58
Branch analysis from position: 56
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 58
1 jumps found. (Code = 42) Position 1 = 59
Branch analysis from position: 59
Branch analysis from position: 47
Branch analysis from position: 47
Branch analysis from position: 59
Branch analysis from position: 22
2 jumps found. (Code = 44) Position 1 = 24, Position 2 = 35
Branch analysis from position: 24
2 jumps found. (Code = 44) Position 1 = 26, Position 2 = 35
Branch analysis from position: 26
2 jumps found. (Code = 44) Position 1 = 28, Position 2 = 35
Branch analysis from position: 28
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 47
Branch analysis from position: 30
2 jumps found. (Code = 44) Position 1 = 32, Position 2 = 47
Branch analysis from position: 32
2 jumps found. (Code = 44) Position 1 = 34, Position 2 = 47
Branch analysis from position: 34
1 jumps found. (Code = 42) Position 1 = 59
Branch analysis from position: 59
Branch analysis from position: 47
Branch analysis from position: 47
Branch analysis from position: 47
Branch analysis from position: 35
Branch analysis from position: 35
Branch analysis from position: 35
filename:       /in/GXopv
function name:  is_serialized
number of ops:  62
compiled vars:  !0 = $data, !1 = $badions
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    4     1        TYPE_CHECK                                   64  ~2      !0
          2        BOOL_NOT                                         ~3      ~2
          3      > JMPZ                                                     ~3, ->5
    5     4    > > RETURN                                                   <false>
    6     5    >   INIT_FCALL                                               'trim'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $4      
          8        ASSIGN                                                   !0, $4
    7     9        IS_EQUAL                                                 !0, 'N%3B'
         10      > JMPZ                                                     ~6, ->12
    8    11    > > RETURN                                                   <true>
    9    12    >   INIT_FCALL                                               'preg_match'
         13        SEND_VAL                                                 '%2F%5E%28%5BadObis%5D%29%3A%2F'
         14        SEND_VAR                                                 !0
         15        SEND_REF                                                 !1
         16        DO_ICALL                                         $7      
         17        BOOL_NOT                                         ~8      $7
         18      > JMPZ                                                     ~8, ->20
   10    19    > > RETURN                                                   <false>
   11    20    >   FETCH_DIM_R                                      ~9      !1, 1
         21      > SWITCH_STRING                                            ~9, [ 'a':->35, 'O':->35, 's':->35, 'b':->47, 'i':->47, 'd':->47, ], ->59
   12    22    >   CASE                                                     ~9, 'a'
         23      > JMPNZ                                                    ~10, ->35
   13    24    >   CASE                                                     ~9, 'O'
         25      > JMPNZ                                                    ~10, ->35
   14    26    >   CASE                                                     ~9, 's'
         27      > JMPNZ                                                    ~10, ->35
   18    28    >   CASE                                                     ~9, 'b'
         29      > JMPNZ                                                    ~10, ->47
   19    30    >   CASE                                                     ~9, 'i'
         31      > JMPNZ                                                    ~10, ->47
   20    32    >   CASE                                                     ~9, 'd'
         33      > JMPNZ                                                    ~10, ->47
         34    > > JMP                                                      ->59
   15    35    >   INIT_FCALL                                               'preg_match'
         36        ROPE_INIT                                     3  ~13     '%2F%5E'
         37        FETCH_DIM_R                                      ~11     !1, 1
         38        ROPE_ADD                                      1  ~13     ~13, ~11
         39        ROPE_END                                      2  ~12     ~13, '%3A%5B0-9%5D%2B%3A.%2A%5B%3B%7D%5D%24%2Fs'
         40        SEND_VAL                                                 ~12
         41        SEND_VAR                                                 !0
         42        DO_ICALL                                         $15     
         43      > JMPZ                                                     $15, ->46
   16    44    >   FREE                                                     ~9
         45      > RETURN                                                   <true>
   17    46    > > JMP                                                      ->59
   21    47    >   INIT_FCALL                                               'preg_match'
         48        ROPE_INIT                                     3  ~18     '%2F%5E'
         49        FETCH_DIM_R                                      ~16     !1, 1
         50        ROPE_ADD                                      1  ~18     ~18, ~16
         51        ROPE_END                                      2  ~17     ~18, '%3A%5B0-9.E-%5D%2B%3B%24%2F'
         52        SEND_VAL                                                 ~17
         53        SEND_VAR                                                 !0
         54        DO_ICALL                                         $20     
         55      > JMPZ                                                     $20, ->58
   22    56    >   FREE                                                     ~9
         57      > RETURN                                                   <true>
   23    58    > > JMP                                                      ->59
         59    >   FREE                                                     ~9
   25    60      > RETURN                                                   <false>
   26    61*     > RETURN                                                   null

End of function is_serialized

Generated using Vulcan Logic Dumper, using php 8.0.0


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